15 results about "Dry machining" patented technology

The invention discloses a device and method for machining internal threads through electromagnetic induction heat treatment assisted bending vibration and belongs to the technical field of precise non-traditional machining. Electromagnetic induction heating is utilized, the hole wall surface of the workpiece is pretreated, the hole wall surface strength is regulated and controlled, and the thread tooth integrity and the surface quality are improved. Ultrasonic vibration is introduced in internal thread turning, the length and the thickness of a tool handle are set, so that the tool handle generates high-frequency bending vibration and drives an internal thread turning tool, and the tool handle is enabled to realize high-frequency micro-displacement swing of an XY plane by taking the tool handle as the center under the axial vibration action of a piezoelectric transducer and is coupled with macroscopic machining tracks of an X axis and a Y axis at the same time; the phenomena of chip blockage and friction aggravation under dry machining of the internal thread can be avoided, the phenomena that the thread surface is scratched due to untimely chip removal and burrs are generated are reduced, the surface quality of the internal thread tooth is further improved, and the machining precision is guaranteed; and the auxiliary heating rod is matched with the electromagnetic induction coil, so that heat on the surface of the hole wall can be quickly superposed, and the heating efficiency is improved.

Disclosed is a pre-sintered ceramic block for a dental restoration, which has a low pre-sintering temperature, contains a silica main crystal phase, but does not contain or contains a small amount of lithium metasilicate crystal phase. The pre-sintered ceramic block has a low hardness, with a Vickers hardness of 0.5-3 GPa, which is significantly lower than that of a ceramic block containing a lithium metasilicate crystal phase, and same is suitable for dry machining and also wet machining when being machined into a dental restoration.

This invention discloses a free-machining high-strength aluminum-lithium alloy, its preparation method, and its applications, belonging to the field of alloy materials technology. The free-machining high-strength aluminum-lithium alloy has the following weight percentages of elements: Li: 3.5–5.5%, Cu: 2.6–3.1%, Zn: 6.8–7.1%, Mg: 2.1–3.0%, Y: 1.5–4.0%, Bi: 0.85–1.05%, In: 0.05–0.08%, Cr: 0.05–0.45%, Ti: 0.02–0.04%, with the balance being Al. This invention involves batching, smelting, refining, online refining, online degassing and filtration, casting, homogenization, extrusion, and two-stage aging treatment to finally obtain a free-machining high-strength aluminum-lithium alloy with a uniform microstructure. This invention has a reasonable component ratio, low manufacturing cost, and the resulting product has excellent strength and hardness, and exhibits excellent surface finish after dry machining.

The utility model discloses a high-durability corrugated pipe machining device and relates to the technical field of corrugated pipe machining. According to the high-durability corrugated pipe machining device, a corrugated pipe is connected to the outer side of a clamping block of a clamping seat on the left side in a sleeving mode, a first bevel gear is driven by a third motor to rotate, a second bevel gear drives an adjusting lead screw to rotate, and therefore the multiple clamping blocks are driven to be away from each other along a movable groove and form inner clamping fixing with the inner side of the corrugated pipe; a second motor is controlled to work to drive a driving lead screw to rotate, so that a movable plate slides along a sliding groove, a clamping block of the other clamping base is driven to stretch into the inner side of the corrugated pipe, the inner wall of the right side of the corrugated pipe is controlled to be clamped, and supporting and fixing of the corrugated pipe are achieved. And meanwhile, the draught fan works to blow air to the corrugated pipe, drying machining of the corrugated pipe is achieved, and then the corrugated pipe can be rapidly taken out by pulling the box cover.

A pre-sintered porcelain block for dental restoration; the pre-sintered porcelain block does not contain crystal phases and has a Vickers hardness of 0.5-2 GPa. Due to a hardness which is significantly lower than that of the porcelain block containing a lithium metasilicate crystal phase, the pre-sintered porcelain block may be processed by using dry machining and can simultaneously be processed by using wet machining when being mechanically processed into a dental restoration shape.

The invention provides a multi-pass pretreatment type aluminum profile spraying method. The multi-pass pretreatment type aluminum profile spraying method comprises the steps that S1, an aluminum profile is soaked and cleaned; s2, layered feeding of the aluminum profiles is conducted, specifically, a turnover assembly drives a hoisting and transferring assembly to rotate to a feeding position, and a hoisting tool discharging assembly takes down a hoisting clamp on the upper portion; the hoisting and transferring assembly clamps and takes out a layer of horizontally-arranged aluminum profiles; s3, air-drying the aluminum profile; s4, spraying the aluminum profile; s5, the aluminum profiles are dried, specifically, the turnover assembly drives the hoisting and transferring assembly to rotate, so that the vertically-distributed aluminum profiles are transferred to a drying position; the aluminum profile unloading assembly at the drying station takes down the multiple sets of aluminum profiles which are vertically arranged, the hoisting and transferring assembly is separated, and the aluminum profile unloading assembly conveys the multiple sets of aluminum profiles to the drying furnace; according to the aluminum profile spraying device, the aluminum profiles can be taken down layer by layer in the early-stage feeding process, one layer of multiple aluminum profiles can be rapidly subjected to air drying, spraying and drying machining, and the aluminum profiles do not need to be hung up and down.

The present application relates to the field of milling cutter coating design, in particular to a kind of composite coating cutter and its preparation method.The cutter includes cemented carbide substrate and composite coating;The composite coating is prepared by arc ion plating, and from substrate to outside, it includes XN transition layer, AlXN intermediate layer, nano-composite functional layer;X is Ti and / or Cr.Its preparation method includes using arc ion plating to prepare each coating.The present application improves the service life of coating by designing multilayer coating, and avoids the problem that nano-composite functional layer falls off early due to low adhesion by designing transition layer and intermediate layer.The present application can effectively improve the performance of cutter in dry machining, reduce the wear length of relief surface.

The present application belongs to the technical field of cutting tool surface coating, and discloses a hard coating for titanium alloy cutting and a preparation method and application thereof. The hard coating comprises a bottom layer and a top layer. The bottom layer is a W bottom layer or a W-N bottom layer, and the top layer is a W top layer or a W-N top layer. The thickness of the hard coating is 2.0-2.5 μm, wherein the thickness of the bottom layer is 0.3-0.6 μm, and the thickness of the top layer is 1.5-2.0 μm. The elements in the hard coating are tungsten 80-100 at. % and nitrogen 0-20 at. %. The coating is deposited by high-power pulsed magnetron sputtering. The coating has good hardness and good oxidation resistance, prolongs the service life of the coated tool in titanium alloy machining, and still shows excellent titanium alloy cutting performance under dry machining conditions.

The utility model discloses a derusting device for hardware, which relates to the technical field of hardware processing and comprises a main box body and a derusting component, a water inlet is arranged at the upper end of the left side of the main box body, a water outlet is arranged at the lower end of the water inlet, and the derusting component is arranged in the main box body. The rust removal assembly comprises a mounting through groove, an electric telescopic rod, a mounting block, a grid storage frame, an ultrasonic generator and an ultrasonic vibration head, the electric telescopic rod is mounted in the mounting through groove, the mounting block is mounted at the front end of the electric telescopic rod, the grid storage frame is arranged on the inner side of the mounting block, and the ultrasonic generator is mounted at the bottom end in the main box body. An ultrasonic vibration head is arranged at the upper end of the ultrasonic generator, and a drying assembly is arranged at the upper end of the main box body. According to the rust removal device for the hardware, rust removal operation can be conducted on the hardware in different forms, drying machining is conducted after rust removal is completed, and the overall use efficiency of the rust removal device is improved.

A method for producing a green body for a machining segment, where the machining segment is connectable to a basic body of a machining tool by an underside of the machining segment, includes placing first hard material particles in respective depressions of a first press punch in a defined particle pattern and applying a first matrix material to the placed first hard material particles.

To perform cleaning in a machine while meeting a user's requirement to perform machining without supplying a coolant to a work or a tool, a machine tool that performs machining for a work using a tool includes a controller that performs mode switching between a half-wet machining mode in which a coolant is supplied to a non-machining area to remove chips in the machine tool during machining, and no coolant is supplied to a machining area, and at least one of a wet machining mode in which the coolant is supplied to the machining area and a dry machining mode in which no coolant is not supplied into the machine tool.

The invention discloses a multi-element composite coating cutting tool which has high hardness, excellent high-temperature oxidation resistance and wear resistance and can meet the dry machining requirements of difficult-to-machine materials such as titanium alloy and the like as well as a preparation method and application of the multi-element composite coating cutting tool. The multi-element composite coating cutting tool comprises a base body, and an AlTiN coating, an AlTiCrN coating and an AlTiCrSiBN coating which are sequentially deposited on the base body. The preparation method of the multi-element composite coating cutting tool comprises the following steps that an AlTi target is deposited on the surface of a base body in a nitrogen atmosphere through arc ion plating, and an AlTiN coating is formed; an AlTiCr target is deposited on the surface of the AlTiN coating in the nitrogen atmosphere through arc ion plating, and an AlTiCrN coating is formed; and an AlTiCrSiB target is deposited on the surface of the AlTiCrN coating in the nitrogen atmosphere through arc ion plating, and the AlTiCrSiBN coating is formed.

The invention relates to the field of milling blade coating design, in particular to a composite coating cutter and a preparation method thereof. The cutter comprises a hard alloy matrix and a composite coating, the composite coating is prepared in an arc ion plating mode and sequentially comprises an XN transition layer, an AlXN middle layer and a nano composite functional layer from a base body to the outside. And X is Ti and / or Cr. The preparation method comprises the step of preparing each coating by adopting arc ion plating. According to the invention, by designing multiple layers of coatings, the service life of the coating is prolonged by introducing the high-hardness nano-composite functional layer, and the problem that the coating falls off early due to low binding force of the nano-composite functional layer is avoided by designing the transition layer and the middle layer. The performance of the tool in dry machining can be effectively improved, and the abrasion length of the rear tool face is reduced.

The utility model discloses a placing rack for drying metal parts, which comprises a fixed base, the top surface of the fixed base is symmetrically and fixedly connected with a fixed rod and an adjusting rod, a plurality of separating components are arranged above the fixed base, the fixed rod and the adjusting rod are respectively clamped in two ends of each separating component, the top surfaces of the separating components are respectively contacted with placing plates, and the placing plates are respectively connected with the fixed rod and the adjusting rod. Limiting holes are symmetrically formed in the placing plate, and a fixing rod and an adjusting rod are clamped in the limiting holes respectively; the top surface of the placing plate is fixedly connected with a fixed plate, the fixed plate is provided with a moving groove, one side of the inner wall of the moving groove is provided with a through hole, one end of a handle is clamped in the through hole, one end of the handle is fixedly connected with one end of a screw rod, the other end of the screw rod is rotatably connected with the inner wall of the moving groove, and the screw rod is provided with a bidirectional thread. According to the metal part drying device, parts can be fixed between the partition plate and the movable clamping plate in a partition mode, part damage caused by collision generated by movement of the metal parts in the drying process is avoided, and drying machining can be better carried out.

According to the liquid level display and alarm device of the alcohol type cooling liquid for target material processing, based on the communicating vessel principle, the transparent vertical communicating pipe is arranged on the outer side face of the cooling liquid storage container, so that the cooling liquid storage container and the transparent vertical communicating pipe have the same liquid level, and the liquid level is displayed through the position of the magnetic floating ball in the vertical communicating pipe; the residual amount of the alcohol type cooling liquid in the cooling liquid storage container can be known at any time, when the liquid level is low to the alarm liquid level, an alarm is given through the alarm, an operator can be reminded to add the alcohol type cooling liquid in time, the alcohol type cooling liquid is enough when a target material is machined, a vehicle cannot be dried, and the product quality and the machining efficiency are guaranteed. The device disclosed by the utility model not only can reduce the workload of operators, but also can avoid dry turning caused by insufficient alcohol type cooling liquid during product processing, is stable in surface quality and high in efficiency, and has the advantages of simple and practical structure.