40results about How to "Reduce forming process" patented technology

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.

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 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.