Hot die forging press clutch friction disc and friction plate bonding and riveting process

Abstract

The invention discloses a hot die forging press clutch friction disc and friction plate bonding and riveting process which adopts a rolling mode to obtain a friction disc, and the problems of air holes, sand holes and the like which cannot be solved by casting products are solved through free forging blank making, rolling machine ring forming, material toughness increase, steel plate welding replacement, product quality improvement and replacement of steel plate welding. After the surface of the friction disc is cleaned, deoiled and descaled by a rotary table type sand and shot blasting machine through a bonding and riveting process, hemp is thrown and dust is blown away by the rotary table type sand and shot blasting machine, the surface subjected to hemp throwing is glued and then bonded with a friction plate, and the friction disc and the friction plate are locked and pressurized by a clamp and are pushed into a heating furnace; heating and preserving heat for multiple times to obtain the clutch friction disc assembly of the hot die forging press; the shearing strength of the obtained friction disc assembly can reach 4.5 mPA, the hardness HRR reaches 75-80, the friction limit pressure is 17 kg / cm < 2 >, the tolerable temperature ranges from 100 DEG C to 250 DEG C, and the friction frequency can reach 950-10 million times.

Description

technical field [0001] The invention belongs to the technical field of forming friction parts, and in particular relates to a riveting process of a clutch friction plate and a friction plate of a hot die forging press. Background technique [0002] As we all know, when the clutch friction plate of the existing hot die forging press is made, the brake plate that plays a key role is generally composed of a metal friction disc and a friction disc. This kind of friction disc is generally made of metal material. The metal is a casting or a plate-shaped weldment, and there are technical disadvantages in the actual use process, which is reflected in the friction disc of the casting. There are generally trachoma, such trachoma cannot be fully displayed, and it is easy to cause the overall fracture after the friction disc is stressed; if The production method of welded parts has low efficiency and cannot guarantee the strength; in addition, during the operation of large friction disc...

AI Technical Summary

Problems solved by technology

[0002] As we all know, when the clutch friction plate of the existing hot die forging press is made, the brake plate that plays a key role is generally composed of a metal friction disc and a friction disc. This kind of friction disc is generally made of metal material. The metal is a casting or a plate-shaped weldment, and there are technical disadvantages in the actual use process, which is reflected in the friction disc of the casting. There are generally trachoma, such trachoma cannot be fully displayed, and it is easy to cause the overall fracture after the friction disc is stressed; if The production method of welding parts is low in efficiency and the strength cannot be guaranteed; in addition, during the operation of large friction discs, it is easy to cause the friction disc to separate from the friction plate, and the existing riveting structure cannot guarantee the strength