70 results about "Variable thickness" patented technology

The invention discloses a compression test clamping tool, system and method for a variable-thickness beveled laminated plate composite material, and relates to the technical field of aviation composite material mechanical property testing. The first long chuck and the second long chuck are respectively mounted on a variable-thickness side and an equal-thickness side of the beveled laminated plate sample, and the first long chuck mounted on the variable-thickness side is gradually thickened on a conical beveled layer and a thin section of the beveled laminated plate sample. According to the invention, the additional bending moment caused by eccentricity of a neutral shaft is effectively inhibited through the gradually-changed thickening design of the variable-thickness side long chuck in cooperation with gap control, and active inhibition of buckling instability of a beveling area is realized in combination with rigid fixation and surface roughening treatment of the short chuck; the method has the advantages that buckling instability is restrained, a failure area is accurately positioned, and samples of different configurations are adapted.

The invention discloses thickness-variable metal belt rolling equipment and a thickness-variable metal belt rolling method, and belongs to the technical field of metal rolling, the thickness-variable metal belt rolling equipment comprises a rack and further comprises roller quick cutting mechanisms, a thickness quick adjusting mechanism and a metal belt supporting mechanism, and the two roller quick cutting mechanisms which are vertically stacked are distributed on the upper side of the rack; a roller fast cutting mechanism with the lower side conducting self-locking and fast switching on rollers is installed on the upper side of the rack, the thickness fast adjusting mechanism is installed on the rack, and metal belt supporting mechanisms for conducting supporting feeding and supporting discharging on metal belts are installed on the front side and the rear side of the rack correspondingly. The roller quick-cutting mechanism comprises a roller quick-switching mechanism and a roller locking mechanism, and the roller quick-switching mechanism for quickly switching the rollers is mounted on the upper side of the rack. In this way, the rollers made of different materials can be rapidly switched for rolling, and the rolling thickness can be rapidly adjusted.

The present application relates to a fan blade (10) for an industrial axial fan. The fan blade (10) comprises an airfoil (12) and a blade root (14) arranged proximal to the airfoil (12) and configured for attaching the fan blade (10) to a hub (62) of an axial flow fan. The airfoil (12) includes a tip (22) at a distal end (23) and a base (24) at a proximal end (25), a leading edge (26) and an oppositely disposed trailing edge (28), whereby both edges (26, 28) extend from the tip (22) to the base (24). The airfoil (12) has a variable thickness defined as a distance between a top surface (30) and a bottom surface (32). Furthermore, the airfoil (12) is an injection molded unitary structure integrally formed in one piece from a composite material, where the composite material comprises carbon fibers and a thermoplastic selected from the group consisting of polyamide, polybutylene terephthalate and polypropylene.

The application discloses a kind of half-ball harmonic oscillator variable-thickness metal film layer plating device and method, the device includes revolution platform (1), lifting rod (2), rotation platform (3), half-ball harmonic oscillator clamp (4) and mask sheltering board (7).The rotation platform (3) is installed on revolution platform (1), is moved and positioned by revolution platform (1) driving rotation platform (3);The lifting rod (2) is installed on rotation platform (3), and rotation platform (3) drives lifting rod (3) to make rotation motion;The upper end of lifting rod (2) is connected with half-ball harmonic oscillator clamp (4), and lifting rod (2) drives half-ball harmonic oscillator clamp (4) to lift motion;The half-ball harmonic oscillator clamp (4) is used to hold and fix in the lower support rod of half-ball harmonic oscillator;The mask sheltering board (7) is located above half-ball harmonic oscillator clamp (4), and the mask sheltering board (7) has three stations, first station (7-1) is used for half-ball harmonic oscillator inner spherical surface film layer plating, second station (7-2) is used for half-ball harmonic oscillator lip along position film layer plating, and third station (7-3) is used for half-ball harmonic oscillator support rod upper part film layer secondary plating.The application greatly improves film plating efficiency, and reduces the influence of metal film layer on half-ball harmonic oscillator vibration performance.

The present application relates to the field of data processing technology, and discloses a multi-element weather-resistant special plate design method. The method comprises: performing trapezoidal cross-section design processing on the geometric structure of the special plate according to the axial force distribution law to obtain the equal-width variable thickness tapping parameters, performing stress matching calculation processing on the equal-width variable thickness tapping parameters through a mechanical analysis algorithm to obtain thickness-force correspondence data, performing weather resistance fusion processing on the multi-element formula system and the thickness-force correspondence data to obtain a material composition distribution scheme, and performing hot rolling forming optimization processing on the special plate manufacturing process according to the material composition distribution scheme to obtain the multi-element weather-resistant special plate design parameters. The present application solves the technical problems in the existing steel plate design that the geometric structure and the axial force distribution are not matched, and the multi-element formula system lacks a design fusion with the force characteristics. At the same time, it solves the technical problems that the manufacturing process of the variable thickness special-shaped plate lacks systematic optimization and cannot achieve precise forming control of equal-width and unequal-thickness structures.

A method of bonding a smaller substrate, such as a die, to a larger substrate, such as a wafer. The method includes forming a bulge at a front side of the larger substrate by releasably securing a backside of the larger substrate to a rigid chuck, bonding the smaller substrate to the bulge at the front side of the larger substrate, and allowing the bulge to flatten by releasing the larger substrate from the rigid chuck. A variable thickness material on the backside of the larger substrate induces the bulge at the front side of the larger substrate. The method may also include forming the variable thickness material on the backside of the larger substrate. Multiple bulges may be induced at the front side of the larger substrate. Multiple smaller substrates may be bonded to a single bulge.

We offer iron-type golf club heads with variable thickness faces. [Solution] With respect to a golf club head, the striking face has a thick central region and a peripheral region where the thickness decreases, thereby improving the performance of the golf club head.

An intraocular lens having an anterior optic with a central dynamic zone configured to undergo a shape change for accommodative function, the anterior optic including a dynamic membrane having a differential thickness gradient between its posterior and anterior surfaces. Related devices and methods are provided.

The invention provides a forming tool and a preparation method of a variable-thickness composite pipe fitting. In the tool, the two ends of a forming die are fixedly installed on supporting columns at the two ends through screws correspondingly; the profile surface of the forming die is arranged according to the profile surface of the inner wall of the composite material pipe fitting, and target heads are arranged in allowance areas of the two ends of the forming die respectively; in the paving process of the composite material pipe fitting, accurate positioning of a paving layer area is achieved through cooperation of the target head and the laser projection equipment; when the pipe fitting is demoulded, the demoulding assembly is mounted on a forming mould through the connecting piece so as to demould the pipe fitting, the annular top plate of the demoulding assembly is in contact with the end face of the formed composite material pipe fitting, and displacement is provided for the annular top plate through the fixing ring attached to the annular top plate, so that demoulding of the composite material pipe fitting is completed. The method solves the problems that variable-thickness pipe fittings are difficult in thickness control, multiple in wrinkles, easy to damage during demolding and the like, improves the product quality and the production efficiency, and is suitable for batch manufacturing of complex pipe fittings in the fields of aerospace, automobiles and the like.

This invention belongs to the technical field of automotive energy-absorbing structures, specifically relating to a reverse design method for variable-thickness thin-walled energy-absorbing structures. This method allows for the design of thickness variations based on the energy absorption characteristics of the thin-walled energy-absorbing structure itself. For a given impact load condition, the thickness of the automotive thin-walled energy-absorbing structure is used as the design variable, and the total energy absorption value of the thin-walled energy-absorbing structure is used as the design objective. Under the constraint of limiting the total mass of the thin-walled energy-absorbing structure, the aim is to improve crashworthiness. This method starts with reverse design, with the core idea of ​​increasing thickness where needed (where energy absorption is high) and decreasing thickness where it is not needed (where energy absorption is low), aiming for a rational material distribution within the structure. Through this method, engineers can quickly design variable-thickness energy-absorbing structures. This method simplifies the energy-absorbing structure design process, controls costs, and has good operability and convenience.

The present invention provides a shot peening forming speed design method and device for a continuously variable thickness and variable curvature skin. The method obtains the chord-wise section inertia moment and span-wise section inertia moment, and chord-wise curvature radius of each micro-region; calculates the target curvature radius of a target test area to obtain a chord-wise reference shot peening speed and a span-wise reference shot peening speed; for each micro-region, the chord-wise shot peening forming speed is determined based on the span-wise section inertia moment and chord-wise curvature radius of the micro-region, the span-wise section inertia moment and chord-wise curvature radius of the target test area, and the chord-wise reference shot peening speed; the span-wise shot peening forming speed is determined based on the chord-wise section inertia moment and chord-wise curvature radius of the micro-region, the chord-wise section inertia moment and chord-wise curvature radius of the target test area, and the span-wise reference shot peening speed; finally, the shot peening forming speed of each micro-region is obtained; and by infinitely subdividing the micro-regions, the precise speed of shot peening on a variable thickness and variable curvature part is calculated, thereby infinitely approximating the theoretical curvature shape of the skin.

Systems and methods to determine a thickness profile of nested metallic pipes can include processing long sections (windows) of induction multi spacing and multi frequency noncollocated sensor measurements (attenuation and phase). The systems and methods also include using an inversion based process to deconvolve the tool transfer function from the surrounding pipe structure and its anomalies by running an axisymmetric finite element method ( FEM modeling solver with a model in an inversion loop.

A golf club head with improved striking face is disclosed. More specifically, the present invention relates to a golf club head wherein the striking face has a central region of increased thickness and surrounding regions having decreasing thickness to improve the performance of the golf club head.

This invention discloses an additive manufacturing path planning method and system for the head of an ultra-high strength steel deep blind hole shell component. The method includes: acquiring a three-dimensional geometric model of the component to be formed; identifying and extracting the internal cavity surface and edge contour features of the head of the deep blind hole shell component; generating a variable thickness layered slicing scheme based on the internal cavity surface and edge contour features; adopting a multi-level partitioning strategy within each layer based on the variable thickness layered slicing scheme, and designing the main path direction and scanning angle for each region; generating an adaptive spiral progressive filling path that can suppress residual stress and deformation based on the main path direction and scanning angle; and generating a processing instruction file that can directly drive additive manufacturing equipment based on the adaptive spiral progressive filling path. Using this invention, active control of the heat distribution and shrinkage deformation within the internal cavity of the head of the ultra-high strength steel deep blind hole shell can be achieved, improving the forming accuracy, internal quality, and mechanical property consistency of the component.

A lightweight and durable window well is composed of a long fiber reinforced thermoplastic (LFRT). The lightweight and durable window well has at least some fibers that are omnidirectional relative to the other fibers in the thermoplastic. Additionally, at least some fibers of the LFRT have a length greater than 40 mm. The window well also has a body having a plurality of ribs interposed between a plurality of wall surface portions. Additionally, each rib is positioned between two different wall surface portions and is defined by a variable height and a variable depth. Furthermore, the wall surface portions have a variable thickness that varies from a minimal thickness of less than 3 mm to a maximum thickness of greater than 5 mm, with the wall surface being thicker near the ribs than at portions furthest from the ribs in the wall surface.

Implementations provide cold spray additive manufacturing (“CSAM”)-based fabrication of a complex multi curvature part (“CMCP”) by cold spraying onto a mold. Implementations achieve the desired shape and dimensions of a CMCP having variable surface thicknesses and utilize reinforcements integrated during CSAM. Reinforcements are integral to each CMCP as soon as fabrication is complete, and maintain stiffness, avoid fluttering, and provide other similar benefits. Implementations provide a stiff CMCP with multiple curvatures having fully controllable variable thicknesses. Integral reinforcements added during fabrication avoid tolerance issues by avoiding coupling non-reinforced CMCPs to reinforcements or other post-fabrication adjustments. CSAM-based CMCPs, having directly integrated reinforcements, exhibit superior tolerances that do not need to be re-worked or otherwise corrected after fabrication. Reinforcement attachment methods that have complex load transfer behavior are not necessary. In some implementations, simplifying load transfer increases the maximum load and decreases the overall weight of the finished CMCP.

The present application relates to the technical field of metal cutting, in particular to a kind of rolling differential thick plate finishing equipment of periodic variable cross-section thickness, including the conveying belt being arranged on machine tool base, and two groups of T-shaped seat being oppositely arranged on both sides of machine tool base, two groups of T-shaped seat are all equipped with disc cutting group, when using, by driving part driving disc cutting group is rotated, when the thick area of equipment shearing differential thick plate to be sheared, cooperate transmission part to make disc cutting group obtain relatively lower speed, disc cutting group speed reduces, to adapt to the requirement of large shear force, relatively lower linear velocity needed by thick area shearing, guarantee shearing completely and smoothly, when the thin area of equipment shearing differential thick plate to be sheared, cooperate transmission part to make disc cutting group obtain relatively higher speed when shearing thin area, match the higher linear velocity needed by sheet shearing, optimize shearing quality, realize high speed, self-adapting, high quality finishing to periodic variable thickness differential thick plate.

The invention relates to a composite material transmitting tube with a variable-thickness section structure and a forming method, and the composite material transmitting tube comprises a front end frame (1), a rear end frame (2), and a composite tube body (3) used for connecting the front end frame (1) and the rear end frame (2); the composite tube body (3) comprises a front end frame connecting structure (31), a middle connecting structure (32) and a rear end frame connecting part structure (33) which are sequentially arranged in the longitudinal direction of the composite material transmitting tube. The middle connecting structure (32) is provided with a plurality of variable thickness parts (32A) which are sequentially connected in the circumferential direction; in the transverse direction of the composite material transmitting tube, the variable-thickness part (32A) is of a symmetrical structure, and the thickness of the variable-thickness part (32A) is gradually reduced in the direction from the middle to the edge. According to the scheme, the composite material launching tube which is excellent in strength and rigidity and light in weight is effectively provided, so that the composite material launching tube has a wider application range and potential.

The invention provides a knowledge-based large integral panel shot peening forming process parameter design method. From the part level, the area level to the path section level, part level parameters (nozzle specification, nozzle diameter, shot specification, shot flow, spraying distance, spraying angle and prestress level), area level parameters (spraying air pressure) and path section level parameters (feeding speed) in the shot blasting process are determined step by step by using verified shot blasting forming process knowledge; and the reliability of parameter design is ensured, so that all process parameters meet the engineering use requirements. Aiming at the characteristics of variable thickness and air pressure change of the whole wallboard part, the shot blasting path is partitioned based on injection air pressure adjustment, a plurality of injection air pressure equivalent regions with feasible process are formed, and the high efficiency of processing is ensured; and the speed similarity of the discrete points and the deviation between the combined path section and the original path are comprehensively considered, the original discrete points are combined into the path section with the equal feeding speed, the machining efficiency is improved, and meanwhile the shot peening forming quality of the whole wall plate is guaranteed.

The invention provides a method and device for optimizing the plane shape of a medium-thickness plate based on variable-thickness rolling, and the method comprises the steps: calculating the plane shape change of a rolled piece according to the size data of the rolled piece and a specific rolling process procedure, and determining a thickness compensation curve of a variable-thickness rolling pass according to the non-uniform deformation of the plane shape, theoretical support and technical guidance are provided for the medium-thickness plate online rolling control technology, the plane shape control precision and the rectangularization rate of finished products are effectively improved, the applicability is high, the debugging cost and the optimization difficulty are reduced, and the energy utilization rate and the product yield are improved.

The present application relates to the field of automobile body structure, and more particularly to an integrally formed middle and rear floor beam frame structure, comprising: a monolithic hot forming body, integrating a cross beam and a longitudinal beam, the cross beam comprising a middle cross beam and a rear cross beam, the longitudinal beam comprising a left longitudinal beam and a right longitudinal beam, and a round corner transition structure at the connection between the longitudinal beam and the cross beam; the monolithic hot forming body is made of a laser welding variable thickness sheet through an integrated hot stamping forming process, the variable thickness sheet comprising at least two regions with different thicknesses, a high stress region using a first thickness sheet, the high stress region comprising a longitudinal beam and cross beam intersection area, a subframe mounting point periphery, and a longitudinal beam bending transition section; a low stress region using a second thickness sheet smaller than the first thickness, the low stress region comprising a longitudinal beam middle non-load bearing section and a cross beam lateral extension section. It integrates multiple traditional parts into one core component, greatly reducing the number of molds, welding processes and assembly time, reducing cumulative errors, and improving production efficiency.

The present application relates to a WAAM reinforced variable-thickness welded I-beam and a manufacturing method thereof. The variable-thickness welded I-beam comprises flanges, a web welded with the flanges and a WAAM stiffener, wherein the flanges are longitudinal variable-thickness steel plates, the web is an equal-thickness steel plate or a longitudinal variable-thickness steel plate, and the WAAM stiffener is arranged at the top end of the flange and integrally formed at the top end of the flange by a wire-arc additive manufacturing technology. The longitudinal variable-thickness flange combined with the WAAM stiffener reinforcing structure not only has a simple processing technology and significantly reduces the amount of steel material, but also has good seismic performance. The manufacturing method uses the WAAM technology to manufacture the stiffener, can realize integrated forming of complex shapes, eliminates traditional welding, cutting and other processes, simplifies the manufacturing process, and reduces material waste.

1. A coated steel sheet having a variable thickness in the rolling direction, with one portion rolled at a rolling ratio of 1 to 60% and at least another portion rolled at a different rolling ratio, wherein the coating comprises optional elements selected from zinc, silicon, magnesium, maximum 3.0 wt% iron, Ni, Zr, Hf, Sr, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr or Bi, each of which has a content by weight of less than 0.3 wt%, optionally maximum 100 ppm calcium, and maximum 0.02 wt% unavoidable impurities, the balance being aluminum, and wherein the coating has a thickness of 50 to 500 g / m2 on both sides combined before flexible rolling. 2 Coated steel sheets with variable thicknesses having coating weights of

The application discloses a rolling forming control scheme of a non-equal-section variable-thickness piece, and comprises the following steps: S1, analyzing a variable-thickness part along a length direction of a variable-thickness plate, and measuring an actual thickness of the plate by using a thickness detection device before the variable-thickness plate passes through a rolling mill; S2, dividing a thin area, a thick area or a transition area of the variable-thickness plate by using the collected actual thickness; and S3, the whole rolling mill has 20-50 rolling mills, and the control of the position of each rolling mill is realized by using a servo electric cylinder. In the application, the adjustment of the position of the rolling mill is changed in real time according to the specific value of the detected thickness due to the existence of the thickness tolerance of the actual incoming plate, the gap between the inner and outer rolling mills is changed by changing the position of the rolling mill on one side, the thickness change of the part is adapted, the required position of the rolling mill is calculated in real time, and therefore the precise rolling forming of the non-equal-section variable-thickness piece can be realized.

The embodiment of the invention discloses an assembled and synthesized superposed shear wall and a construction method thereof. According to one specific implementation mode of the assembled and synthesized superposed shear wall, formwork shells on the two sides are in a variable thickness form that the edge component area is thin, and the wall body area is thick, the thickness of the formwork shells in the edge component area is controlled to be 30-40 mm, the thickness of the formwork shells in the wall body area is controlled to be 50-70 mm, the strength grade of formwork shell concrete is not lower than C60, and the strength grade of the formwork shell concrete is not lower than C30. The edge component area vertical load-bearing steel bars and the stirrups are all arranged on the middle post-pouring part. By optimizing the thickness of the formwork and optimizing the strength grade of the formwork and the concrete of the middle post-cast part, it can be guaranteed that the overall compressive property of the edge component area is not lower than that of a traditional cast-in-place edge component, and the deformation capacity of the overall superimposed shear wall is not weakened; the problems that in the prior art, due to the fact that shear wall edge component stirrups are reserved on one side of a formwork, production is complex, collision is prone to occurring, and the standardization degree of the formwork is low can be solved, and the problem that anti-seismic calculation of the formwork is not clear is solved.

A crownplate for a golf club head includes a shell formed from a first plurality of pre-preg plies and a second plurality of pre-preg plies and defining a first thickness area and a second thickness area. The first plurality of pre-preg plies includes a resin material and a first plurality of fibers and the second plurality of pre-preg plies includes a resin material and a second plurality of fibers. The first plurality of pre-preg plies have a first tensile strength and a first amount of graphene, and the second plurality of pre-preg plies have a second tensile strength and a second amount of graphene. The second plurality of pre-preg plies define an outer periphery of the crownplate.

The invention relates to a low-hysteresis low-loss variable-thickness fingertip sealing device, and belongs to the technical field of fluid mechanical sealing. The sealing device comprises a rotor, a front baffle, a rear baffle and a sealing piece set clamped between the front baffle and the rear baffle, and is characterized in that a back pressure cavity is formed in the rear baffle, and the sealing piece set is formed by stacking at least three layers of sealing pieces with different thicknesses; the sealing piece I, the sealing piece II and the sealing piece III are sequentially arranged in the direction from the high-pressure side to the low-pressure side of fluid. Reasonable regulation and control of rigidity distribution can be effectively achieved, high fluid loads can be stably borne, through the synergistic effect of the back pressure cavity formed in the rear baffle and the rhombic surface texture of the non-contact area, the working environment of the sealing piece can be optimized, the active utilization capacity of pressure energy of high-pressure fluid can be enhanced, and the sealing piece can be used for sealing the high-pressure fluid. The design contradiction of rigidity-flexibility-energy consumption of a traditional equal-thickness fingertip seal can be relieved fundamentally, and the equal-thickness fingertip seal is suitable for high-parameter, long-service-life and high-reliability rotary mechanical seal scenes.