Reasons that affect the stability of metal stamping parts production
In many metal stamping factories, there will be instability when processing metal parts. It is a headache. So what are the reasons for the unstable factors in the processing of metal stamping parts?
As we all know, there are many types of metal materials used in stamping dies. Due to the different roles of various parts in the mold, the requirements and selection principles for their materials are not the same. Therefore, how to select mold materials reasonably becomes a mold Very important work in design.
Metal stamping processing-choice of lubricant
Let us first take a look at the main factors that affect the stability of metal stamping parts, which are: the use of mold materials; the strength requirements of mold structural parts; the stability of stamping material properties; the fluctuation characteristics of material thickness; the range of material changes; The resistance of the tensile ribs; the changing range of the blank holder force; the choice of lubricant.
When selecting mold materials, in addition to requiring high strength, high wear resistance and appropriate toughness, the characteristics and output requirements of the processed product materials must also be fully considered in order to achieve the stability requirements of mold forming.
Metal stamping processing-die material selection
In actual operation, because mold designers tend to choose mold materials based on personal experience, in metal stamping, the problem of instability of mold forming due to improper selection of mold parts often occurs.
Metal stamping parts
There are the following precautions when selecting materials:
①The stress of the punch <the allowable compressive stress of the punch material
②In order to improve the bending strength of the punch, a material with a large elastic coefficient should be selected
③According to Euler’s formula, check the stability ability.
It is worth noting that in the metal stamping process, since each stamping sheet has its own chemical composition, mechanical properties and characteristic values closely related to stamping performance, the performance of stamping materials is unstable, the thickness of stamping materials fluctuates, and The change of stamping material not only directly affects the precision and quality of metal stamping processing, but also may cause damage to the mold.
In order to solve the problem of the stability of the metal stamping parts, it is necessary to strictly check the following aspects:
①In the process formulation stage, by analyzing the product, predict the defects that may occur in the product manufacturing, so as to formulate a stable manufacturing process plan;
②Implement the standardization of production process and production process;
③Establish a database, and continuously summarize and optimize it; get a good plan.