39results about How to "Reduce forming process" patented technology

The invention discloses a fiber-metal composite laminate, a forming die therefor and a forming method. The fiber-metal composite laminate comprises two aluminum-alloy layers, wherein at least two PEEKresin layers are arranged between the two aluminum-alloy layers, and a carbon fiber prepreg layer is arranged between every two adjacent PEEK resin layers. The forming die for the fiber-metal composite laminate comprises a male die and a combined female die which are arranged correspondingly. The forming method for the fiber-metal composite laminate comprises the step of carrying out hot stampingforming on the fiber-metal composite laminate by using the forming die. According to the fiber-metal composite laminate, the forming die therefor and the forming method, disclosed by the invention, the efficiency and quality of production of the fiber-metal composite laminate are improved.

The invention discloses a solid solution-bending-aging forming device and method for a vehicle body aluminum alloy pipe. The device comprises a heating mechanism and a bending mechanism. The heating mechanism comprises an induction coil and a high-frequency power source. The induction coil is arranged on the periphery of a bent part of the pipe in a sleeving mode and connected with the high-frequency power source. The bending mechanism comprises a bending die, a fixed clamp block, a crease-resistant block, movable clamp blocks and a rigid / flexible core die. The bent part of the pipe is placed on the bending die. One end of the pipe is clamped on the bending die through the fixed clamp block and the crease-resistant block, and the other end of the pipe is clamped by the movable clamp blocks. The rigid / flexible core die is arranged in the pipe. The fixed clamp block, the crease-resistant block and the movable clamp block are designed in a split mode, and the bending die is designed in an insert mode, so that water channels are processed conveniently and replacement after abrasion is convenient. The bending die, the fixed clamp block, the crease-resistant block and the movable clamp blocks are all internally provided with serpentine channels used for introducing cooling water. The solid solution-bending-aging forming device and method for the vehicle body aluminum alloy pipe can significantly improve the strength, the hardness and the forming precision of aluminum alloy pipes, and the springback problem of the pipes after bending and quenching is effectively solved.

The invention discloses a near-net forming method of a high-strength internal hexagon bored bolt. The method includes: firstly, feeding a pipe; secondly, cold-extruding, machining, thermally annealing, surface-treating, and lubricating; thirdly, placing a treated hollow blank into a cavity of a forming die of a forming tool for a high-strength internal hexagon bored bolt, forming an internal hexagon bore and a boss on the bolt, smoothly ejecting an extruded part out of the die; and fourthly, cutting ends and threads on the near-net-shaped extruded part to obtain a standard internal hexagon bored bolt. The method is convenient and simple to operate and high in production efficiency, has fewer machining procedures compared with those of the traditional method, has effectively lowered production cost, and is suitable for batch production.

The invention belongs to the relevant field of machining and forming of plate components, and discloses a metal plate component connection and forming composite manufacturing method based on high-speed impact. The method comprises the following steps that a reinforcing plate is placed on a mould, and a substrate is arranged above the reinforcing plate; a circuit loop is provided for the substrate, and an aluminum foil is used as a material source for generating gasification drive at the same time; current flows through the aluminum foil and gasification occurs, and generated local high-pressure air mass drives the substrate to move downwards at a high speed and hit the reinforcing plate; and the reinforcing plate is connected with the substrate at an impact position, and with the continuous impact and final stop of the impact, the reinforcing plate and the substrate are gradually connected and formed into a whole in the mould until the whole composite manufacturing process is completed. The invention also discloses a corresponding metal plate product. Through the method, the forming limit of plate component can be improved, the machining defects such as excessive strain at corners and connection with the mould can be reduced advantageously, and the method has the advantages of less required processes, high forming precision and efficiency, convenience in operation and control, and the like.

The invention discloses a vacuum temperature adjustment type extrusion molding method of a copper part. The vacuum temperature adjustment type extrusion molding method is characterized by comprising the following steps: putting a copper blank with the initial temperature of -150 DEG C to 20 DEG C into an extrusion lower die cavity; then extruding the blank under the action of an upper die; when the upper die moves to designed displacement, keeping pressure of the blank; the carrying out vacuumizing treatment on a device space where the upper die and a lower die are arranged, wherein the vacuumdegree is -0.095MPa to -0.09MPa; meanwhile, heating the lower die and controlling temperature, wherein the temperature of a concave die is 20 DEG C to 300 DEG C; when the concave die reaches designedtemperature, continually downward moving the upper die and carrying out extrusion deformation on the blank; after the extrusion is finished, pressurizing the device space to atmospheric pressure; then returning back the upper die and taking materials. By adopting the method disclosed by the invention, the deformation capability of metal can be increased and elastic deformation is reduced; the comprehensive performance of the copper part is improved and molding procedures are reduced.

The invention belongs to the technical field of bimetal composite pipe fittings and discloses a method and a device for directly hot-forming a bimetal composite pipe fitting from a metal pipe. The forming capacity and the forming temperature are determined, the formability of the pipe fitting is analyzed, and a pipe blank is subjected to blanking and assembly. Blanking is conducted according to the available pipe blank size, an inner-layer pipe sleeves an outer-layer pipe, and a uniform gap of 0.1-10 mm is kept between the inner wall of the inner-layer pipe and the outer wall of the outer-layer pipe through two supporting rings located between the two ends of the outer-layer pipe and the two ends of the inner-layer pipe; a die is assembled, free bulging is conducted, die assembly and feeding are performed, boosting pressure and shaping are performed, unloading is performed, and a part is picked up. The bimetal composite pipe fitting is obtained. An air pressure bulging method is adopted, the process is simple, and compounding and forming of the bimetal composite pipe fitting difficult to deform at the room temperature can be achieved at the same time through a single process. The deformation resistance of the pipe at high temperature is small, the plastic forming performance is high, and large plastic forming of materials difficult to deform can be achieved. The bimetal composite pipe fitting is combined through cold shrinkage, and the combination is reliable.

The invention discloses a manufacturing method of a multi-layer bending structure. The problems that in the prior art, bending forming of a multi-layer material composite structure is difficult to realize, the production efficiency is low, and the application range is narrow are solved. The method has the advantages of being uniform in composite layer thickness, good in interface composite effect,high in composite efficiency, and capable of manufacturing various forms of composite structures. According to the manufacturing method of the multi-layer bending structure, the method comprises thefollowing steps that a composite original blank is prepared; the composite original blank is put into an extrusion barrel, and the composite original blank, the extrusion barrel and a forming die areheated; and a first extrusion push rod and a second extrusion push rod are moved to make contact with the composite original blank; and by varying the propulsion speed v1 of the first extrusion push rod and the propulsion speed v2 of the second extrusion push rod, the composite original blank is made to obtain a varying velocity gradient when passing through a forming channel of the forming die, thereby obtaining the variable curvature multi-layer bending structure.

In the forming method of blocking mask and electrode pattern of the prior art, precious metals such as gold and platinum are consumed too much to form metal film on the whole glass substrate, and the manufacturing cost of masks which need to have three manufacturing steps. A blocking mask (6a) and an electrode coating (7c) are formed using a gold film. The blocking mask (6a) and the electrode coating (7c) are formed together by printing an organic gold paste only in a necessary part and baking the printed organic gold paste.

The invention relates to a new flashlight with a tail cover, which includes a head cover, a barrel neck, a switch part, a barrel body and a tail cover. The top electric frame is movably sleeved in the fixed top electric frame, and its disc-shaped bottom surface is in contact with the tail spring, and is pressed against the ring opening at the top of the fixed top electric frame, and can expand and contract in the fixed top electric frame with the top spring. The invention has the beneficial effects of simple structure, beautiful appearance, practicality, less forming process and low production cost.

Disclosed is a method for manufacturing an element for a CVT belt, comprising a body portion (22L, 22R) having right and left sides and a tapered portion with a downwardly reducing width, a neck portion extending upward from the body portion, and a head portion extending upward from the neck portion. The manufacturing method comprises a first punching step in which a metal strip blank (31) which has a uniform thickness and a width which makes it possible obtain elements arrayed on an even number of lines in an arrangement in which the head portions are opposed to each other or an arrangement in which the body portions are opposed to each other, is punched along an outline ((33L, 33R) of an excess material (21b) added to profiles of the left and right sides (21L, 21R) of the body portions, and along an outline (58L, 58R) of an excess material (32b) added to a profile of a lower side (32L, 32R) of the body portion; a plastic deformation step in which the blank is compressed in the thickness direction to form a predetermined projection and depression, and form the tapered portion while displacing the material in the outline directions; and a second punching step in which the element is obtained as a product by punching the blank.

The invention provides a heterogeneous gradient composite material and a preparation method thereof. The preparation method comprises the steps that an aluminum base composite material is manufacturedinto a slab, then the aluminum base composite material slab and aluminum-silicon alloy powder are laid in sequence, and finally, the aluminum base alloy composite material and aluminum-silicon alloyare tightly combined to obtain the heterogeneous gradient composite material by pressure sintering. By preparing the aluminum base composite slab in advance without cold pressing and molding, high volume fraction can be obtained, thermal expansion coefficient can be reduced, the thickness and shape of an aluminum base composite layer are controlled easily, and the repeatability of the process is ensured; and the sintering performance of the aluminium-silicon alloy is good, pressure sintering with powder direct laying can reduce the forming process and reduce the cost, the using requirements can be better met, and the stability of the process is ensured.

An extruding-expanding molding method for a rim provided with a flange is characterized by comprising the following steps: (1) blanking; (2) heating: rods subjected to blanking and an extrusion mold are heated to an extrusion start temperature respectively; and (3) two-way extruding-expanding molding. Compared with the prior art, the extruding-expanding molding method has the advantages that fewer procedures are included, the whole set of molding tool and equipment investment is small, and the method is suitable for industrial batch production; the molding cycle is shortened, and the molding efficiency is increased; and the manufacture cost is reduced.

The invention discloses a near-net forming die for a high-strength internal hexagonal through-hole bolt. The near-net forming die mainly comprises an upper die plate, movable press blocks, a male die upper fixing plate, an internal hexagonal through-hole forming punch, a head forming boss press block, a knockout seat, a knockout plate, a female die prestress ring, a forming female die, a base plate, a lower die plate and an ejector. An axial through hole is formed in the middle of the internal hexagonal through-hole forming punch. The head forming boss press block is penetratingly sleeved on a rod body of the internal hexagonal through-hole forming punch through the axial through hole. A plunger tip of the internal hexagonal through-hole forming punch extends out of the axial through hole. The near-net forming die has the main advantages that the internal hexagonal through-hole forming punch and the head forming boss press block are separated from each other and designed to be penetratingly sleeved with each other, so that an inner hexagonal through hole and a head boss can be formed sequentially, defects such as metal folding and turbulence generated during simultaneous forming of the inner hexagonal through hole and the head boss can be avoided, and a blank adhered on the plunger tip is facilitated to be knocked out by the knockout plate after completion of forming.

The invention provides a hot extrusion forming device and process for a steel diesel engine piston. The device includes a multi-directional forming extrusion device for extruding a metal blank to form a forging blank and a punching hole for punching the forging blank. The invention can realize the flashless forging forming of the steel diesel engine piston, and can form the piston pin hole, the process and the device can keep most of the metal streamlines of the forgings, and the metal streamlines are distributed along the contour of the forgings. It is beneficial to the stress state of the part during use, and at the same time, the required forming process of the process and the device is short, the energy consumption of the forming equipment is low, and the metal utilization rate is high.

The invention discloses a sleeve forming method. The sleeve forming method comprises the following steps that step A, blank drawing is conducted, a blank material is preformed after the first time stamping forming; step B, drawing is conducted for the second time, the blank material subjected to stamping forming in the step A is subjected to stamping forming for the second time; step C, a die is provided, forming of the flange part of the blank material formed in the step B is completed by one time of stamping stroke, the bottom surface is cut off, and the straight cylinder part is formed; andstep D, the blank material formed in the step C is milled, an arc of the opening part of the straight wall is formed, and final machining of the sleeve is completed. Compared with the prior art, thesleeve forming method reduces forming procedures and bottom turning procedures, so that influence on the quality of the accessory surface by multi-procedure forming is reduced, and the utilization rate of accessory materials is improved.

The invention belongs to the relevant field of machining and forming of plate components, and discloses a metal plate component connection and forming composite manufacturing method based on high-speed impact. The method comprises the following steps that a reinforcing plate is placed on a mould, and a substrate is arranged above the reinforcing plate; a circuit loop is provided for the substrate, and an aluminum foil is used as a material source for generating gasification drive at the same time; current flows through the aluminum foil and gasification occurs, and generated local high-pressure air mass drives the substrate to move downwards at a high speed and hit the reinforcing plate; and the reinforcing plate is connected with the substrate at an impact position, and with the continuous impact and final stop of the impact, the reinforcing plate and the substrate are gradually connected and formed into a whole in the mould until the whole composite manufacturing process is completed. The invention also discloses a corresponding metal plate product. Through the method, the forming limit of plate component can be improved, the machining defects such as excessive strain at corners and connection with the mould can be reduced advantageously, and the method has the advantages of less required processes, high forming precision and efficiency, convenience in operation and control, and the like.

The invention discloses an extrusion forming die for an open mold cavity. The extrusion forming die mainly comprises an extrusion punching die body and an extrusion pulling die body. In the extrusion punching stage, the open mold cavity is formed by a first female die and a second female die. The second female punching die is of a floating structure and moves downwards along an upper die, the forming load is reduced, and the bend resistance bearing capability of a male die is improved. After a blank makes contact with a first jacking rod, the upper die and an upper ramming cylinder are depressurized; piston rods of a left piston cylinder and a right piston cylinder move upwards to support a female die supporting ring; a left movable supporting block and a right movable supporting block are pulled out horizontally under the effect of a moving and resetting system; a lower die sleeve and the female die supporting ring overall move downwards under the effects of the resilience force of a spring and the pressing force of the upper ramming cylinder in the return stroke process of the left piston cylinder and the right piston cylinder; and when the blank makes complete contact with a lower fixed plate, the open mold cavity is formed again at the moment. The thinning pulling times can be effectively decreased, forming defects such as pull cracks and pull fractures are prevented, and the extrusion forming die for the open mold cavity can be applied to forming of various deep blind hole thin wall products.

The invention discloses a large curved surface shell local feature forming device. The large curved surface shell local feature forming device comprises a flexible platform, guide rail fixing seats, asteel channel welding flexible frame, a lifting stand column, a die and an electromagnetic forming mechanism. The large curved surface shell local feature forming device implements large curved surface shell local feature forming through cooperation of electromagnetic forming and a flexible tool. The working procedures of traditional large curved surface shell local feature forming are substantially simplified. The time period cost is reduced, and the die machining cost is greatly reduced. Through the large curved surface shell local feature forming device and forming method, the forming limit of a material can be improved, the working procedures can be simplified, and the machining purpose can be achieved through one-time forming. The forming tool can be simplified. A large press machineis not needed. Only the single-face die corresponding to the local features is needed, and a male die is not needed. The surface quality of a formed part is good without scratches, and the rate of finished products is high.