Forming Technology of Front Axle Seamless Segment Roll Forging Front Axle Beam

Abstract

The invention discloses a front axle seamless segment roll forging front axle beam forming process, which includes the following process steps: S1, blank: using a sawing machine to cut the material, and intercepting the round steel that meets the requirements of the process size; S2, heating: using 1500kW intermediate frequency induction Heating to make the temperature of the round steel reach 1200±20℃; S3, one roll forging: through the top hat-shaped hole system on one roll forging die, the forced widening of the two spring plate positions of the front axle beam is realized, and at the same time, one roll forging is carried out. The rectangular hole pattern system on the die deforms other parts except the position of the leaf spring, so that the width and height meet the requirements of the second roll forging process; S4, roll forging second pass: after the first roll forging, the front The axle beam is rotated 90° into the second pass, and the roll forging forming of the two spring plates of the front axle beam and the transition position of the spring plate to the fist and the pre-forming of the middle I-shape are realized through the two roll forging dies. The present invention has strong practicability. and features that eliminate roll forging and forming defects.

Description

technical field [0001] The invention relates to the technical field of automobile front axle production, in particular to a forming process of a front axle beam without seams and segmented roll forging. Background technique [0002] At present, the production of domestic automobile front axles widely uses precision roll + die forging forming process. This process has high material utilization rate and small main forming equipment, and has become the preferred process for small and medium-sized enterprises. However, this process is convenient for the repair and installation of roll forging dies. , both the first roll forging die and the second roll forging die are divided into blocks in the middle of the cavity, resulting in the metal flow direction perpendicular to the joint direction during the use of the roll forging die, and the metal deformation force at the joint is It wears, deforms or even cracks faster than other parts under the action of the action, resulting in for...

AI Technical Summary

Problems solved by technology

[0002] At present, the production of domestic automobile front axles is widely used in the fine roll + die forging forming process. This process has high material utilization rate and small forming main equipment. It has become the preferred process for small and medium-sized enterprises. , the first roll forging die and the second roll forging die are divided into blocks in the middle of the cavity, resulting in the fact that the metal flow direction is perpendicular to the joint direction during the use of the roll forging die, and the joint is under the metal deformation force Under the action of other parts, it wears, deforms and even cracks faster than other parts, resulting in forging folding defects in the product or reducing the life of the die, which directly affects the mass production pass rate of the product and the cost of the die. In order to eliminate the forging folding defects caused by seams in the production process and mold service life, therefore, it is necessary to design a front axle seamless segmental roll forging front axle beam forming process with strong practicability and eliminate roll forging and forming defects

Images