161 results about "Undercut" patented technology

A fastening arrangement for connecting a façade panel and a panel holder is provided. The façade panel is a panel with a homogeneous structure; with a front side, a material layer and a rear side. A keyhole-shaped groove is provided on the rear side of the facade panel having a widened insertion opening and a retaining area with an undercut in the material layer. The mechanical connection between the facade panel and the panel holder is a riveted connection using a rivet with a mushroom-shaped head inserted through the insertion opening and into the undercut of the retaining area. The panel holder is pushed onto a free end of the rivet shank that extends out via a through-opening so that the panel holder rests on the cover panel. The rivet shank free end is then formed by a rivet setting tool to create a positive fit between the composite panel and the panel holder.

The invention relates to a connector for two workpieces, comprising two fittings which each have a mounting face for a workpiece and an opposite connecting face, on which they can be hooked into one another in a hooking direction extending in parallel with the connecting face. Each fitting comprises, on its connecting face, a shoulder which extends transversely to the hooking direction over its entire width and comprises an undercut, which leaves a ridge on the shoulder. The end face of each fitting remote from the shoulder and adjacent to the connecting face has a lip adjacent to the connecting face and extending over its entire width transversely to the hooking direction. The lip of each fitting engages in the undercut in the respective other fitting in a first position of the fittings in which they are hooked into one another.

The invention relates to a device, in particular an inclined ejector (1), for demolding a cast component (2) with an undercut from a casting mold for a casting process or an injection molding process with an ejector, comprising:an ejector head (16) with a profile which is complementary to the cast component (2) with the undercut and is mounted in a recess (8) so as to be displaceable between a casting position and an ejection position,an ejector base (5) that moves in the translational direction;a link chain (12), which mechanically connects the ejector head (16) with the ejector base (5) in order to implement a force and movement deflection, wherein the link chain (12) has a plurality of chain segments (121) which engage in one another in the longitudinal direction, have low play / backlash with respect to pull and push in the longitudinal direction and permit tilting relative to one another in at least a first transverse direction.

A tool (100) for cold forming of splines on a pre-machined blank includes an annular shaped die holder (102) and an annular shaped die (104) concentrically fixed to the die holder (102). The die (104) includes splined profile matching profile of the splines to be formed on an inner circumference of the annular shaped die (104). The tool (100) is configured to concentrically locate the blank (300) over the die (104) such that when the blank is forced against the die (104), the splined profile of the die (104) deforms the spline portion (304) of the blank (300) to generate the splines. The blank includes an undercut located between a gear portion (302) and a spline portion (304) of the blank to accommodate material flow due to deformation of the spline portion (304) of the blank (300) during generation of the splines.

The utility model discloses an altimeter testing fixture for detecting the dimension of an internal thread tool withdrawal groove, which relates to the technical field of tool withdrawal groove dimension measurement and comprises a base assembly, and a measuring assembly is arranged at the top of the base assembly. According to the utility model, the height block and the thread go gauge are respectively arranged at two sides of the top end of the bottom plate, and the height block and the thread go gauge have the same height, so that during detection, a measured product is sleeved at the top end of the height block, and then the slide block slides, so that the bottom end contact of the altimeter is located at the top of the height block; the altimeter is pulled downwards until the contact of the altimeter is in contact with the top of the product, the altimeter is reset, then the thread of the product is rotated to the top end of the thread go gauge, the altimeter is moved to the top of the thread go gauge, the contact of the altimeter is pulled again to be in contact with the top of the product, and the read number is the measurement result. The measurement efficiency is high, the measurement is accurate, and the error is small.

The invention discloses a corner crack arrest slot undercut to reduce grain damage. A die carrier for accommodating a plurality of circuit protection devices is disclosed. In some embodiments, a die carrier may include a die body and a recess in the die body, where the recess is operable to receive a die of a circuit protection device. The recess may include a central region defined by a set of sidewalls and a plurality of corner regions extending from the central region, each of the corner regions defined by a first curved wall, a second curved wall connected to the first curved wall, and a third curved wall connected to the second curved wall, wherein a first center of curvature of the first curved wall and a second center of curvature of the second curved wall are at different positions.

The invention relates to the technical field of foundation engineering, in particular to a sunken post-tensioning anti-floating anchor rod fabricated anchoring joint construction method which comprises the following steps: carrying out an anchor rod uplift bearing capacity test; constructing a cushion layer and manufacturing an anchor rod, wherein the anchor rod comprises a steel strand; an anchor rod construction point is positioned on the cushion layer; drilling and cleaning an anchor hole; lowering the anchor rod; performing primary normal-pressure grouting and secondary high-pressure grouting; maintaining the anchor rod; constructing a waterproof layer; binding reinforcing steel bars and installing a sealing anchor base; pouring structural bottom plate concrete; tensioning and locking the anchor rod; according to the construction method, it can be guaranteed that the site of the structural bottom plate is flat, operation of constructors and transportation of mechanical equipment are facilitated, the effect of protecting anchoring joints of the anchor rods is achieved, and the damage risk of the anchoring joints is reduced; compared with a traditional convex type or concave type anchoring node, the bottom plate can be reduced by a certain thickness, waterproof construction operation is simpler and more convenient, the labor material cost can be greatly reduced, the construction difficulty can be lowered, the self weight of the bottom plate is reduced, and the effect of shortening the construction period is achieved.

The present invention provides a coreless rotor motor with an encoder, comprising a stator and a rotor installed in the stator, and also comprising an encoder and an encoding disk; the rotor comprises a magnetic steel frame, magnets, a left pressure cover and a right pressure cover; a plurality of magnetic steel slots are circumferentially distributed on the left and right ends of the magnetic steel frame; a plurality of through holes are circumferentially distributed on the magnetic steel frame; the through holes comprise an insertion portion through hole and a positioning portion through hole connected to one side of the insertion portion through hole; the magnets are inserted into the magnetic steel slots; a plurality of insertion rods are circumferentially distributed on the right side of the left pressure cover; an undercut is provided at the right end of the insertion rod; the insertion rod cooperates with the positioning portion through hole; the undercut can pass through the insertion portion through hole; an air avoidance groove for avoiding the undercut and a positioning protrusion cooperating with the insertion portion through hole are provided on the left side of the right pressure cover; the encoding disk is fixed on the right pressure cover; the encoder is fixed at the right end of the stator and connected to the encoding disk; the present invention is convenient to maintain, light in weight, small in size and has strong structural stability.

The utility model relates to a large-stroke back-off demolding mechanism, and relates to the technical field of molds, the large-stroke back-off demolding mechanism comprises an inclined ejection assembly, a straight ejection assembly and a lateral ejection assembly, the inclined ejection assembly and the straight ejection assembly abut against each other and are both in contact with a product, and a back-off of the product is located in the straight ejection assembly and is in contact with the lateral ejection assembly; the inclined ejection assembly is used for being separated from the product and the straight ejection assembly during ejection, and the lateral ejection assembly is used for ejecting the inverted buckle out of the straight ejection assembly. Through the synergistic effect of the inclined ejection assembly, the straight ejection assembly and the lateral ejection assembly, the demolding requirement of a large inverted buckle can be met; the inclined ejection assembly is separated from a product and the surface of a mold to provide a demolding space for ejection of an inverted buckle, the product and the surface of the mold can be prevented from being adhered, the clamping stagnation phenomenon is avoided, the demolding success rate is increased, the lateral ejection assembly can effectively eject the inverted buckle out of the mold, clamping stagnation caused by the inverted buckle is avoided, subsequent ejection and demolding of the product are facilitated, and the demolding efficiency is improved. And the product quality is improved.

The present invention discloses a secondary core-pulling mold structure, comprising a longitudinally arranged shovel base, the shovel base being sleeved and fitted with an A-plate, a slider seat 1, and a slider seat 2. The A-plate is provided with a groove 1, and the slider seat 1 and the slider seat 2 are both arranged inside the groove 1 and slideably fitted with the inner wall of the groove 1 in the transverse direction. The A-plate moves back and forth in the longitudinal direction relative to the shovel base; the slider seat 1 is inlaid with a pin; and the slider seat 2 is inlaid with a component. When the A-plate moves downward, the shovel base drives the slider seat 1 to perform a first movement to the right, and the slider seat 1 drives the slider seat 1 inlaid pin to move to the upper right, completing the demoulding of the product with the first inverted buckle; when the A-plate continues to move downward, the shovel base drives the slider seat 1 and the slider seat 2 to perform a second step of synchronous movement to the right, and drives the slider seat 1 inlaid pin to move to the right, completing the demoulding of the product with the second inverted buckle. This secondary core-pulling mold structure solves the problem of products with undercuts in two directions, ensuring smooth demoulding when the injection molded product has undercuts in two directions.

A rotary radial vane compressor comprising a cylindrical casing with slight undercut to make a contact sealing area with an off-center rotor. The rotor has one or more radial or offset vanes sliding within slots with a spring forcing it outward. The end of each vane cut in semi cylindrical shape to act as a sealed pivot for a sealing shoe mounted with crescent shaped profile. The sealing shoe casing side cut same as the casing radius and long enough to run over the undercut smoothly. The rotor has a cut space so that it houses the shoe fully in it when running over the undercut in the casing. The casing has intake and discharge ports with inner slot feed and exit extensions. During operation, as the rotor rotates, a cavity formed between the casing, the rotor, and the vane-shoe sets cyclically expands.

Disclosed are methods and apparatus related to micro-electro-mechanical systems (MEMS). A method for manufacturing a mechanical pillar in a micro-electro-mechanical (MEM) device may include: depositing a mask layer on a first side of a substrate; etching a first recess on the first side of the substrate; forming a pillar structure on the substrate wherein a first portion of the pillar structure is coupled to the first recess; etching a second recess at a second portion of the pillar structure; depositing an oxide layer on the column structure, the mask layer and the substrate; etching a horizontal surface of the oxide layer at the mask layer and the substrate; and releasing the mechanical pillar from the substrate, the mechanical pillar including a pillar structure, an oxide layer, and a mask layer.

A fastener including an elongated shaft extending between first and second shaft ends, with a tip provided at the first shaft end, and a thread region provided between the tip and the second shaft end; and a head with a drive region arranged at the second shaft end. The fastener also incudes a first annular undercut area in an underside surface of the head, where the first annular undercut area is configured and arranged to receive material that has flowed from a substrate during installation of the fastener into the substrate, and a second annular undercut area in the underside surface of the head, where the second annular undercut area is located radially outwardly of the first annular undercut area. Additionally, an annular sealing member is provided within the second annular undercut area, where the annular sealing member makes sealing contact with an upper surface of the substrate.

The invention relates to a coupling device (1) for connecting two elements (100, 200) to be connected, which two elements (100, 200) each have a groove (101, 201) with at least one undercut (102a, 102b), in particular a groove (101, 201) with at least one undercut (102a, 102b) on both sides and thus with at least two undercuts (102a, 102b). The coupling device (1) comprises a first clamping part (2) and a second clamping part (3). For each of the two clamping parts (2, 3), a longitudinal direction, a first direction perpendicular to the longitudinal direction, a second direction perpendicular to both the longitudinal direction and the first direction, a third direction opposite to the first direction, and a fourth direction opposite to the second direction are defined. The first clamping part (2) has a first effective surface (5), which first effective surface (5) is inclined relative to the longitudinal direction of the first clamping part (2). The second clamping part (3) has a first effective surface (6), which first effective surface (6) is inclined relative to the longitudinal direction of the second clamping part (3). The first clamping part (2) has a first protrusion arrangement (7), that extends in the first direction of the first clamping part (2), for engaging behind a first of the at least one undercut (102a) of the groove (101) in a first of the two elements (100) to be connected, and the second clamping part (3) has a first protrusion arrangement (8), that extends in the first direction of the second clamping part (3), for engaging behind a first of the at least one undercut of the groove (201) in a second of the two elements (200) to be connected. The coupling device (1) also comprises a tensioning device (4) for drawing the two clamping parts (2, 3) towards one another substantially along a longitudinal axis of the coupling device (1). When the coupling device (1) is assembled, the two clamping parts (2, 3) are each aligned with their longitudinal direction substantially along the longitudinal axis of the coupling device (1), while the first direction of the first clamping part (2) and the first direction of the second clamping part (3) are substantially parallel to one another, and the second direction of the first clamping part (2) and the second direction of the second clamping part (3) are substantially parallel to one another, and the two clamping parts (2, 3) are arranged one behind the other along the longitudinal axis with their first effective surfaces (5, 6) facing one another and can be drawn or are drawn towards one another along the longitudinal axis by the tensioning device (4). When the two clamping parts (2, 3) are drawn towards one another along the longitudinal axis by the tensioning device (4), the interaction of the first effective surfaces (5, 6) causes the first clamping part (2) and the second clamping part (3) to be pressed relative to one another in a direction transverse to the longitudinal axis of the coupling device (1), so that the first protrusion arrangement (7) arranged on the first clamping part (2) and the first protrusion arrangement (8) arranged on the second clamping part (3) are pressed towards one another. A normal vector perpendicular to the first effective surface (5) of the first clamping part (2) has both a component pointing in the first direction of the first clamping part (2) and a component pointing in the second direction of the first clamping part (2). A normal vector perpendicular to the first effective surface (6) of the second clamping part (3) has both a component pointing in the third direction of the second clamping part (3) and a component pointing in the fourth direction of the second clamping part (3).

An internally grounded filter feedthrough having a filter capacitor connected to a feedthrough is described. The feedthrough comprises an insulator having an active conductive pathway extending to its device and body fluid sides, and a ground conductive pathway extending part-way through the insulator thickness from the insulator device side. An undercut extending into the insulator sidewall communicates with the ground conductive pathway but does not extend to the insulator device or body fluid sides or to the active conductive pathway. A braze seals the insulator sidewall to the ferrule and extends into the undercut so that the braze contacts the ground conductive pathway. That way, the braze provides a ground electrical path from a capacitor ground via to the ground conductive pathway in the insulator connected to the braze sealed to the ferrule.

A method for producing a composite material of metal and plastic to form a plastic-metal hybrid component, in which macroscopic undercuts with microscopic undercuts having stochastically random roughness shapes and depths are introduced into the metal surface by means of short-pulse laser radiation to improve the adhesion between the metal surface and at least one plastic component, wherein the shapes and depths of the laser structuring of the metal surface are produced by changing the guidance and / or speed of the laser beam movement and simultaneously adjusting the power and / or the repetition rate of the short-pulse laser radiation, and the stochastically random roughness shapes are each at least partially filled with the at least one plastic component in an injection molding process such that the latter is gripped in the macroscopic and / or microscopic undercuts.wherein, following the roughening of the metal surface prior to the injection molding process of the at least one plastic component, at least the roughened surface of the metal is heated to a temperature which, in the processing range from room temperature to 100°C, is above the processing temperature of the at least one plastic component.

A push-pull plug may include a shielding spring which, viewed in the insertion direction, may have tab-like projections at the front, wherein a snap-ring may have tab-like recesses which correspond to the tab-like projections of the shielding spring and in which the projections of the shielding spring are arranged so that the tab-like projections of the shielding spring together with the tab-like projections of the snap-ring form a completely circumferential projection which comes to bear in the undercut in the panel-mounted socket. In the process, the shielding spring, which may be made of a metal material, loops through the shielding of the push-pull plug to the panel-mounted socket, wherein the shielding spring is directly or indirectly electrically connected to a shielding of a cable on which the push-pull plug is arranged.

The invention relates to a non-self-piercing metal fastening sleeve, which is adapted so as to form an opening reinforcement in a non-metal component and which comprises the following features: a hollow-cylindrical shaft, which is round in cross-section and has a first and a second axial end; a radial collar, which is located at the first axial end, is closed around the circumference of the shaft, protrudes in the radial direction from the shaft and has an integral sealing structure on a contact surface facing the shaft; and an axial wall portion of a wall extending around the circumference of the shaft, which is located at the second axial end of the shaft, tapers radially outwards and is radially outwardly expandable in order to form an axial undercut.

The invention relates to a coupling device (1) for connecting two elements (100, 200) to be connected, which two elements (100, 200) each have a groove (101, 201) with at least one undercut (102a, 102b), in particular a groove (101, 201) with at least one undercut (102a, 102b) on both sides and thus with at least two undercuts (102a, 102b). The coupling device (1) comprises a first clamping part (2) and a second clamping part (3). For each of the two clamping parts (2, 3), a longitudinal direction, a first direction perpendicular to the longitudinal direction, a second direction perpendicular to both the longitudinal direction and the first direction, a third direction opposite to the first direction, and a fourth direction opposite to the second direction are defined. The first clamping part (2) has a first effective surface (5), which first effective surface (5) is inclined relative to the longitudinal direction of the first clamping part (2). The second clamping part (3) has a first effective surface (6), which first effective surface (6) is inclined to the longitudinal direction of the second clamping part (3). The first clamping part (2) has a first protrusion arrangement (7), that extends in the first direction of the first clamping part (2), for engaging behind a first of the at least one undercut (102a) of the groove (101) in a first of the two elements (100) to be connected, and the second clamping part (3) has a first protrusion arrangement (8), that extends in the first direction of the second clamping part (3), for engaging behind a first of the at least one undercut of the groove (201) in a second of the two elements to be connected (200). The coupling device (1) also comprises a tensioning device (4) for drawing the two clamping parts (2, 3) towards one another substantially along a longitudinal axis of the coupling device (1). When the coupling device (1) is assembled, the two clamping parts (2, 3) are each aligned with their longitudinal direction substantially along the longitudinal axis of the coupling device (1), while the first direction of the first clamping part (2) and the first direction of the second clamping part (3) are aligned substantially parallel to one another, and the second direction of the first clamping part (2) and the second direction of the second clamping part (3) are aligned substantially parallel to one another, and the two clamping parts (2, 3) are each arranged one behind the other along the longitudinal axis with their first effective surfaces (5, 6) facing one another, and can be drawn or are drawn towards one another along the longitudinal axis by the tensioning device (4). When the two clamping parts (2, 3) are drawn towards one another along the longitudinal axis by the tensioning device (4), the interaction of the first effective surfaces (5, 6) causes the first clamping part (2) and the second clamping part (3) to be pressed relative to one another in a direction transverse to the longitudinal axis of the coupling device (1) so that the first protrusion arrangement (7) arranged on the first clamping part (2) and the first protrusion arrangement (8) arranged on the second clamping part (3) are pressed towards one another. A normal vector perpendicular to the first effective surface (5) of the first clamping part (2) has both a component pointing in the first direction of the first clamping part (2) and a component pointing in the second direction of the first clamping part (2). A normal vector perpendicular to the first effective surface (6) of the second clamping part (3) has both a component pointing in the third direction of the second clamping part (3) and a component pointing in the fourth direction of the second clamping part (3).

The utility model provides a mold for simply molding a horn part, belongs to the technical field of injection molding molds, mainly aims at solving the problem of low mold manufacturing efficiency caused by complex processing of a demolding mechanism of a traditional molding mold, and adopts the following technical scheme that the mold comprises a mold core assembly which comprises a rear mold core; a front mold core is arranged at the top of the rear mold core, a plate B is arranged at the bottom of the rear mold core, a plate A is arranged at the top of the front mold core, a through groove is formed in the top of the plate A, the bottom end of the inverted buckle penetrates through the through groove to make contact with a product, and multiple sets of buckle assemblies are arranged on the peripheral side of the inverted buckle and connected with multiple sets of buckle positions on the product correspondingly; through the arrangement of the buckle assembly, the guide sliding groove is adopted to replace a T-shaped groove, two pressing plates are removed, one step is adopted, and one pressing plate is used for pressing the slide, so that the number of spare and accessory parts of the mold and the machining amount on the mold are reduced, and the machining difficulty and cost of the mold are reduced.

The utility model discloses an undercut tap bolt, which relates to the technical field of bolts, and comprises a screw rod and a thread assembly, the bottom end of the screw rod is provided with a screwing mechanism, the thread assembly is arranged on the outer wall of the screw rod, the thread assembly is used for positioning the screw rod in concrete, and the thread assembly comprises a first thread and a second thread, the first thread is spirally arranged on the outer wall of the screw rod, the second thread is spirally arranged at the end part of the screw rod, and the first thread is connected with the second thread. By means of the arrangement of the first threads and the second threads, the whole bolt is made of stainless steel except for the second threads, so that the bolt can be suitable for dark, humid and hostile environments, when the bolt is used, the second threads on the outer wall of the screw rod are screwed into concrete firstly, and the second threads on the outer wall of the screw rod are screwed into the concrete. And the second threads made of spring steel have the characteristics of high strength and high toughness, so that the bolt meets the mounting and using requirements of high-strength concrete, and the applicability of the bolt is improved.

A printed circuit board includes metal layers, a metalized circuit via interconnecting a first one of the metal layers and a second one of the metal layers, and a back-drill hole drilled to remove metalization of the circuit via from a third metal layer adjacent to the second metal layer to a fourth metal layer at a first surface of the printed circuit board. The back-drill hole has a profile that includes a first undercut at a bottom of the first back-drill hole.

The invention relates to a chisel holder (30) for an earth working machine, in particular for a road milling machine, a stabilizer, a recycler, or a surface miner, having a support body (35) which has a chisel receiving area (32) or supports at least one cutting tip in the region of a working side, said support body (35) supporting a plug-in attachment (44) directly or indirectly on a plug-in attachment side. The plug-in attachment (44) has a plug-in attachment longitudinal axis (44.2), said plug-in attachment longitudinal axis (44.2) lying on a central longitudinal plane (ME) of the chisel holder (30), and the support body (35) has two front machined surfaces (41.1, 41.2) which form a machined surface pair, are at an angle to one another so as to form a transverse support angle (α) and at least part of which are provided in front of the plug-in attachment (44). The plug-in attachment (44) has, on its front side, at least one convex front shaft contact surface (45), and a cross-section (SF) through the chisel holder (30), said cross-section running parallel to and at a distance from the central longitudinal plane (ME), intersects one of the two front machined surfaces (41.1, 41.2) of the machined surface pair and the front shaft contact surface (45). According to the invention, in order to improve the process of securing the chisel holder in a lower part, the front cross-sectional edge (SK) of the machined surface (41.1, 41.2) and the front cross-sectional edge (45.3) of the front shaft contact surface (45) of the cross-section (SF) form an undercut angle (γ), said undercut angle (γ) equaling at least 103° and at most 114°.

Substrate assemblies having adhesion promotor layers and related methods are disclosed. An example apparatus includes a substrate, a dielectric layer, a first copper layer between the substrate and the dielectric layer, and a film between the dielectric layer and the first copper layer. The film including silicon and nitrogen and being substantially free of hydrogen. A via in the dielectric layer is to provide access to the first copper layer. A portion of the first copper layer uncovered in the via, a wall of the via and the portion of the first copper layer to be substantially free of fluorine. A seed copper layer positioned on the dielectric layer. The via wall and the portion of the first copper layer. The seed copper layer and the first copper layer define an undercut at an interface between the seed copper layer and the first copper layer.

An insert for use in vacuum forming that is locked in place with the vacuum forming material. More specifically, the insert includes one or more undercuts wherein the sheet that is vacuum formed around the undercut is locked without the need for additional manufacturing components and / or procedures. The process is particularly suitable for automotive applications.

The zero-gap ejector mechanism for the injection mold of the automotive door panel trim includes a fixed mold clamping plate and a fixed mold plate, a moving mold clamping plate, a runner support and a runner plate, as well as a bottom plate, mold feet and a moving mold plate. There is a product formed by injection molding between the moving mold plate and the fixed mold plate. The product is provided with concave-convex assembly parts, boundary undercuts, fixing stud holes and positioning stud holes. Corresponding concave-convex assembly ejector blocks, boundary ejector blocks and undercut ejector blocks are arranged on the moving mold plate. The concave-convex assembly ejector block is matched with the concave-convex assembly part, the boundary ejector block is matched with the outer side edge of the boundary undercut, and the undercut ejector block is matched with the outer side edge of the boundary undercut. A small ejector block is arranged in the concave-convex assembly ejector block, and the small ejector block is matched with the outer peripheral wall of the fixing stud hole. A stud hole core rod is installed in the concave-convex assembly ejector block, and the core rod is matched with the inner hole wall of the fixing stud hole. A push tube is connected to the lower top plate, and a ejector pin is connected to the bottom plate. The ejector pin passes through the push tube and is matched with the inner hole wall of the positioning stud hole. The concave-convex assembly ejector block surrounds the outer peripheral wall of the positioning stud hole.

The present invention discloses a high-temperature titanium alloy laser welding process, comprising the following steps: (1) forming a titanium film layer on the surface of iron powder by magnetron sputtering technology to wrap the iron powder particles, thereby obtaining Fe / Ti composite powder; (2) placing Fe / Ti composite powder in the gap between the high-temperature titanium alloy to be welded to form an intermediate layer, and ensuring a tight connection between the titanium alloy-Fe / Ti composite powder-titanium alloy; (3) performing laser welding to completely melt the intermediate layer and partially melt the titanium alloy layers on both sides to form a weld; (4) heating the weldment to 500-600°C for insulation, and then cooling. This process has a stable welding process, a high welding success rate, beautiful weld formation, a small heat-affected zone, and no cracks, pores, undercuts, or penetration defects. It improves the overall mechanical properties and meets the requirements of large-scale and integrated aircraft engines.

To provide a housing suitable for enclosing an electromechanical component, and to a housing assembly.SOLUTION: The housing of the present invention is a housing for accommodating an electromechanical component, including a first housing component and a second housing component. The second housing component has a first guide groove, and the first housing component has a first complementary element. The first complementary element and the first guide groove are formed such that the housing components are connected together to form the housing by being pressed against each other along a guiding direction. The first guide groove has an undercut in which the first complementary element with a shape complementary to that of the first guide groove is fitted.SELECTED DRAWING: Figure 3