Unlock instant, AI-driven research and patent intelligence for your innovation.

A Forging Process of Automobile Brake Camshaft

A technology of automobile brakes and camshafts, which is applied in the field of forging, can solve problems such as uneven internal deformation and insufficient filling, and achieve the effects of good internal quality, full filling, and uniform internal deformation

Active Publication Date: 2018-08-24
JIANGSU JINYUAN FORGE
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to solve the above-mentioned technical problems, and to provide a forging process for the brake camshaft of an automobile. This process enables the core part of the forging billet and the subsurface metal to obtain a large amount of deformation at the same time, and the distribution of the equivalent strain is more uniform, and it is easy to Forming, overcome the defects of uneven internal deformation and insufficient filling

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] A kind of forging technology of automobile brake camshaft, it is characterized in that: comprise the following steps: 1), the steel ingot of blank is heated to 900 ℃ in the first fire, presses jaw, chamfers, wrong nozzle; 2), the second Heat the billet obtained in step 1) again to 1150°C, upsetting and elongating the billet obtained in step 2) with a circular arc tooth-shaped anvil. Heating, heating to 1100°C, using a screw press, die forging, trimming, temperature 950°C, pressure 400T; 4), heat treatment: heating to 850°C for 4.5 hours, air cooling to 500°C, heating to 590° C, air cooling; the arc-shaped tooth-shaped convex-concave anvil includes an upper anvil and a lower anvil, and the upper anvil is two or more circular arcs with equal radii that protrude from the conical surface on both sides to the middle. Convex surface, and the arc surface is smooth and transitional between adjacent arc convex surfaces. The lower anvil is a V-shaped conical surface that is conca...

Embodiment 2

[0008] A kind of forging technology of automobile brake camshaft, it is characterized in that: comprise the following steps: 1), the steel ingot of blank is heated to 950 ℃ in the first fire, press jaws, chamfer, stagger nozzle; 2), the second Heat the billet obtained in step 1) again to 1160°C, upsetting and elongating the billet obtained in step 2) with a circular arc tooth-shaped anvil. Heating, heating to 1110°C, using a screw press, die forging, trimming, temperature 950°C, pressure 400T; 4), heat treatment: heating to 860°C for 5.0 hours, air cooling to 500°C, heating to 600° C, air cooling; the arc-shaped tooth-shaped convex-concave anvil includes an upper anvil and a lower anvil, and the upper anvil is two or more circular arcs with equal radii that protrude from the conical surface on both sides to the middle. Convex surface, and the arc surface is smooth and transitional between adjacent arc convex surfaces. The lower anvil is a V-shaped conical surface that is conca...

Embodiment 3

[0010] A kind of forging technology of automobile brake camshaft, it is characterized in that: comprise the following steps: 1), the steel ingot of blank is heated to 1000 ℃ in the first fire, presses jaw, chamfers, staggered nozzle; 2), the second Heat the billet obtained in step 1) again to 1180°C, upsetting and elongating the billet obtained in step 2) with a circular arc tooth-shaped anvil. Heating, heating to 1120°C, using a screw press, die forging, trimming, temperature 950°C, pressure 400T; 4), heat treatment: heating to 870°C for 5.5 hours, air cooling to 500°C, heating to 610° C, air cooling; the arc-shaped tooth-shaped convex-concave anvil includes an upper anvil and a lower anvil, and the upper anvil is two or more circular arcs with equal radii that protrude from the conical surface on both sides to the middle. Convex surface, and the arc surface is smooth and transitional between adjacent arc convex surfaces. The lower anvil is a V-shaped conical surface that is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a forging process of automobile brake camshafts comprising following steps: blank steel ingots are heated to 900 to 1000 DEG C with a first fire, jaw pressing, chamfering and water ports staggering are performed; 2) blank materials obtained in step 1) is reheated to 1150 to 1180 DEG C with a second fire, an arc dentate swage block which is convex upward and concave downward is used for upsetting and swaging; 3) blank materials obtained in step 2) is reheated to 1100 to 1120 DEG C with a third fire, a screw press is used for die-forging and forming, cutting at 950 DEG C with 400 T; 4) heat treatment: the blank material is heated to 860+ / -10 DEG C and insulated for 4.5 to 5.5 hours, and then cooled in the air to 500 DEG C, and then heated to 600+ / -10 DEG C and then cooled in the air. The product produced by the technology has uniform deformation and good forging internal quality and is easy to shape and the filling is full.

Description

technical field [0001] The invention belongs to the technical field of forging, in particular to a forging process of an automobile brake camshaft. Background technique [0002] The automobile brake camshaft is a main part of the automobile chassis brake assembly. When working, the brake camshaft turns over at a certain angle, props up the brake friction plate and rubs against the automobile brake drum to realize emergency braking of the automobile. Automotive brake camshafts are forged. Traditional forging has uneven internal deformation, slag inclusions, and insufficient filling, which affect the mechanical properties of the product. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned technical problems, and to provide a forging process for the brake camshaft of an automobile. This process enables the core part of the forging billet and the subsurface metal to obtain a large amount of deformation at the same time, and th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B21K1/06B21J1/06
CPCB21J1/06B21K1/06
Inventor 葛艳明杨志华黄俊
Owner JIANGSU JINYUAN FORGE