How to improve the precision of forging surface quality of a

At present, our country has been able to lead, tin, aluminum, copper, zinc and its alloy, low carbon steel, medium carbon steel, tool steel, low alloy steel, stainless steel and other metals cold extrusion, even bearing steel, high carbon, high aluminum alloy tool steel, high speed steel and other metals can also be certain aluminum alloy forging.

 

Aluminium alloy forging comes in a variety of shapes and can weigh up to 30kg and 1g.

 

In the use of mold materials, in addition to high-speed steel, bearing steel, high carbon and high chromium alloy tool steel, there are many new mold steels, such as CG2, 65Nb, LD, etc. In the selection of forging process parameters and the design of mould structure, the CAD/CAM technology and the optimized design are adopted, which make the mould structure more reasonable and the forging process parameters more close to the reality. In terms of forging equipment, China has the ability to design and manufacture forging machines of various tonnage.

 

In addition to general mechanical presses, hydraulic presses and cold extruders, the forging production has been successfully carried out with friction machines and high speed and high energy equipment.

 

The development of science has a great influence on forging technology, especially the application of computer in process analysis, die design, manufacture and process control. Our country will further develop and apply this new technology. The development of forging technology should proceed from the following aspects:

 

1. Expand the application scope of forging technology and gradually replace casting, forging, drawing and cutting within a certain scope;

 

2. Improve the precision and surface quality of forged parts, and produce parts with more complex geometric shapes;

 

3. Expand the types of forging raw materials, and study more ideal surface treatment and lubrication methods;

 

4. Further utilize CAD/CAM and optimize design, improve and speed up mold design and manufacturing, and develop more reasonable mold structure;

 

5. Find more suitable mold materials and heat treatment methods for forging, so as to extend the service life of molds;

 

6. Further research and application of new technologies such as warm extrusion, isothermal extrusion, hydrostatic extrusion and high-speed extrusion;

 

7. Develop a kind of multifunctional forging machine suitable for forging, so that the blank and parts can be safely and automatically feed and output, so as to further improve production efficiency.