Forming process of automobile front lower control arm

Abstract

The invention discloses a forming process of an automobile front lower control arm. The forming process comprises the following steps of forming and shaping two blanks at a time, and sequentially carrying out three times of stretching forming and subsequent fractional forming and shaping. Thus, the automobile front lower control arm is thinned and stretched three times, and after step-by-step gradual thinning, the stretching instant stress of the material is slowed down, so that the product is prevented from cracking and wrinkling; and in the subsequent procedures of flanging, punching, hole flanging, trimming and the like, specified requirements are sequentially met in order for all parts on the product through a forming mold, deformation caused by machining damage to an existing semi-finished product in subsequent machining is avoided, the machining sequence is reasonably arranged according to the time difference generated by the machining difficulty and the machining area, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of molding technology, in particular to a molding technology of an automobile front lower control arm. Background technique [0002] In automobile technology, the widely used independent suspension systems are mainly McPherson and double wishbone suspension systems. In the double-wishbone front suspension system, the subframe, as the basic structural element of the suspension system, provides a hard point arrangement for the suspension system, ensures kinematic characteristics, and at the same time provides sufficient rigidity to ensure stability during driving The front lower control arm, as the guiding and force-transmitting element of the double-wishbone suspension system, bears the ground impact and load transmitted by the wheel, mainly manifested as longitudinal impact. The front lower control arm is connected to the subframe through bolts and nuts to ensure that the wheels move according to the design...

AI Technical Summary

Problems solved by technology

Therefore, the product shape of the front lower control arm is very irregular, and the demoulding mechanism of its molding die is very complicated, thereby the volume of the molding die is very huge

In addition, the plate of the front lower control arm of the car is a cold-rolled steel plate with a thickness of 4 mm. Its material is hard and brittle, and it is easy to crack during the forming process.

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