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Manufacturing method of precision forging machine hammer bar

A production method and precision forging machine technology, applied in the field of forging machinery, can solve the problems of high processing cost, irreparable, long cycle, etc., and achieve the effect of low processing cost and suitable production process route

Inactive Publication Date: 2019-07-02
XIAN AERONAUTICAL POLYTECHNIC INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a method for manufacturing hammer rods of precision forging machines in view of the above-mentioned deficiencies in the prior art, which can solve the problems of difficulty in heat treatment of the hammer rods of precision forging machines, deformation of forging end faces, and deformation of threaded holes for connecting molds. , can not be repaired after damage, high processing cost and long cycle and other problems

Method used

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  • Manufacturing method of precision forging machine hammer bar
  • Manufacturing method of precision forging machine hammer bar
  • Manufacturing method of precision forging machine hammer bar

Examples

Experimental program
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Effect test

Embodiment 1

[0065] The scrapped SKK precision forging machine hammer rod was redesigned, modified and reused. According to the split design structure, the forged end of the hammer rod was Φ180mm according to the requirements of the drawing, and the cylinder was turned to Φ100mm tolerance (+0.02~+0.04), and the height of the cylinder was 121mm tolerance (﹣ 0.1~0);

[0066] Machining the hammer backing ring and the hammer base, such as image 3 As shown, four threads M10X1 are tightly connected, and the material, structure and size of the thread end remain unchanged; the material of the hammer backing ring is 30CrNiMo8, and the material of the hammer cap is VIDAR forged. The forging times are not less than three pulls and three pulls. There must be no white spots, cracks and defects that affect the performance of the material, and a flaw detection report is issued, and the raw material is quenched and tempered: HRC34-38; the hammer backing ring is processed according to the structure and si...

Embodiment 2

[0072] The hammer rod of the new SKK precision forging machine is designed according to the split structure. The material of the hammer rod base, the hammer rod backing ring is 30CrNiMo8, and the material of the hammer rod cap is VIDAR. The forging times are not less than three pulls and three pulls. Points, cracks and defects that affect material performance, flaw detection and issue a flaw detection test report;

[0073] Quenching and tempering treatment of raw materials: HRC34-38; process the hammer backing ring and hammer cap according to the structure and size design requirements of the hammer base, hammer backing ring and hammer cap. Hammer base image 3 The shown semi-finishing leaves a finishing allowance of 0.5mm, then vacuum heat-treats HRC48±2, and finally finishes the hammer base. The thread B165X22 is processed in accordance with the DIN513 (ISO5855) standard to ensure that the forged end cylinder has a tolerance of Φ100mm (+0.02~+ 0.04), cylinder height 121mm to...

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Abstract

The invention discloses a manufacturing method of a precision forging machine hammer bar. Forging, modulation and crack detection treatment are conducted on a raw material, and then the raw material is machined to be a hammer bar substrate, a hammer bar backing ring and a hammer bar cap; then hot assembly is conducted on the hammer bar backing ring and the hammer bar substrate, a mold is machinedto fasten a threaded hole after hot assembly; then hot assembly is conducted on the hammer bar cap and the substrate; and finally, fine machining is conducted on outer cylindrical size of the forgingend, the structure of the threaded end of the hammer bar is reserved, and the precision forging machine hammer bar is manufactured. According to the manufacturing method of the precision forging machine hammer bar, the manufacturing process line is suitable, the machining cost is low, the precision forging machine hammer bar with dimensional precision meeting the requirement can be manufactured, and a method of effective manufacturing and repeating grinding and reusing is provided for the precision forging machine hammer bar.

Description

technical field [0001] The invention belongs to the technical field of forging machines, and in particular relates to a method for manufacturing a hammer rod of a precision forging machine. Background technique [0002] Precision forging machine is a series of forging equipment produced by Austria GFM company. It is basically composed of five parts, namely the main engine, the chuck, the hydraulic station, the lubrication station, and the electrical cabinet. It is a high-tech precision forging equipment integrating machine, electricity and hydraulics. The main engine drives a set of gears through the motor, and transmits the power to four eccentric shafts arranged in oblique symmetry, and the eccentric shaft drives the corresponding hammer rods to reciprocate, thereby realizing the high-frequency forging deformation process of different materials. [0003] The main engine is the core component of the precision forging machine. The main engine is composed of two major compo...

Claims

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Application Information

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IPC IPC(8): B21J5/06B23P15/00B23P19/06B23Q11/10C21D1/62
CPCB21J5/002B21J5/06B23P19/06B23Q11/10C21D1/62
Inventor 豆卫涛史丽晨郝晓丽李雨田王哲
Owner XIAN AERONAUTICAL POLYTECHNIC INST
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