Optimization of die design for the hemmedtop panel of air conditionerexternal unit
on Aiming at the product specifications of the top panel of the air conditioning external unit,the author determined the shape and dimension of the blank,and realized the hemming process of the workpiece by adopting reasonable die structure.The forming process of the product consists of 6 stages:blank corner cutting → deep drawing → edge cutting →corner cutting → circumference lateral flanging → circumference hemming.This article focuses on the determination of the shape and dimension in the 1st stage(blank corner cutting),and the process,die structure and working principle of the the fifth project(circumference lateral flanging).Using the optimized stamping die,the appearance of the top panel was improved,and the stability of product quality was ensured.
sheet metal curlingstamping processmold structuredesign points