33results about How to "Solve forming difficulties" patented technology

A forming method and forming mold for a semi-closed thin plate part, the forming mold includes a base and an inner tire, the base is provided with a concave cavity matching the shape of the bottom of the part, and the inner tire contains a left inner tire , the right inner tire and the support core, place the bent part on the cavity of the forming mold base, and then fill the left inner tire, right inner tire and support core in the bent part in turn Cavity, use positioning pins to fix and position the forming parts, and finally disassemble the forming mold, remove the process lugs, and correct the external dimensions of the parts.

The process of forming artificial joint of nanometer bioceramic relates to nanometer ceramic material forming technology, and aims at solving the problem of forming complicated shape ceramic product. The process includes the following steps: 1. hot pressing and sintering composite Al2O3 / ZrO2 powder or ZrO2 / HAP powder to prepare nanometer ceramic block; and 2. closed die forging to form ceramic product at high temperature. By means of the twice forming process, the present invention can form ceramic part of complicated shape. The present invention has the advantages of simple forming process, easy manufacture of mold, low cost, etc.

The invention belongs to the technical field of rolling and particularly relates to a rolling forming process for a flat plate with a convex rib. The rolling forming process comprises two rolling stages, wherein in the first stage, a to-be-rolled plate is subjected to single-pass rolling or multiple-pass rolling to form a top-convex and bottom-concave plate with a convex rib on the upper surface and a concave structure on the lower surface; in the second stage, the lower surface of the top-convex and bottom-concave plate is subjected to single-pass rolling or multiple-pass rolling so as to beflattened, and a flat plate which has an upper surface with the convex rib and a flat lower surface is obtained. With the adoption of the process, the convex-rib type structure can be formed on the flat plate; in the plate rolling process, the convex rib can be accurately formed while a bottom plate is rolled to be flat; the problem that the convex rib is difficult to form on the premise that thebottom plate is flat in the rolling process of a special-shaped plate is solved.

The invention discloses a cold stamping process of a heavy-duty off-road vehicle frame reinforcing plate. The reinforcing plate is a symmetric product, the section of the product is of an L-shaped structure, the bending circular bead radius is R1, two theta-degree bends are arranged in the longitudinal direction, the bending circular bead radii are R2 and R3, the material thickness ranges from 8 mm to 12 mm, the yield strength ranges from 450 MPa to 600 MPa, and the process comprises the steps of discharging, rolling forming, bending and separating. Flexible forming is achieved, product quality is improved, the problems that forming is difficult and cracking defects exist in the circuitous process can be solved, two products are formed at a time, production efficiency is improved, a general production device is adopted, mold development cost is saved, the product development period is shortened, and the advantages of being good in product quality, low in labor intensity, high in production efficiency, capable of saving cost and shortening product development period can be achieved.

A current-assisted roll forming device for a large area functional microstructure array relates to a roll forming technology, and is designed to solve the problem that large area functional microstructure array is not easy to be formed. A control cabinet of the device is used to control a driving motor to drive a roller press of the precise microstructure array to complete the forming process of the microstructure array of formed parts; an auxiliary forming power supply is used to output pulsed DC, and the current closed loop is realized by the pulsed DC passing though the roller press of theprecise microstructure array and the formed parts. The current-assisted roll forming device for the large area functional microstructure array has the advantages that the forming load can be reduced,and the device is more suitable for continuous production. By using the Joule heating effect and the electroplastic effect formed by assisted current, plastic forming ability of materials can be improved, the minimum forming size can make a breakthrough, and the problem that the large area functional microstructure array is not easy to be formed can be solved.

The present invention relates to a quasi pressure adjusting casting machine comprising a casting kettle, a vacuum baffle, an upper cover, a rapidly locking mechanism, a sealing taper cylinder and a right-angle sealing ring, wherein The upper cover is hinged with an upper cover hinge ear arranged at one side of the casting kettle; the middle of the rapidly locking mechanism is hinged with a locking mechanism hinge ear arranged at the other side of the casting kettle; a groove locked with the upper cover is arranged on the upper end of the rapidly locking mechanism, and a swelling force spring connected with the casting kettle is arranged at the lower end; both ends of the swelling force spring are respectively fixed on the casting kettle and the rapidly locking mechanism; the right-angle sealing ring is arranged in the vacuum baffle, and the vacuum baffle is covered at an opening at the top of the casting kettle; and the sealing taper cylinder is internally sheathed in the right-angle sealing ring. The present invention solves that aluminum alloy thin wall pieces are difficult to form and the aluminum alloy thin wall pieces always appear the problems of microshrinkage, poor tightness and suppress leakage. The present invention has the advantages of that super-thin aluminum alloy casting pieces can be produced; the strength of casting pieces can be improved about 25%; the toughness of the casting pieces can be improved to 80 % to 100%; the production rate is high; and the equipment cost is tens times as low as pressure adjusting casting equipment.