Hardware stretching parts have a wide range of applications in industrial production. It is a processing method for various open hollow parts made by plastic deformation treatment of flat materials using stamping equipment and molds. For hardware stretching parts, the main part of their cost lies in the cost of raw materials. Therefore, in the actual production process, it is necessary to accurately calculate the quantity of raw materials required to control costs and reduce waste.

The calculation of materials for hardware stretching parts mainly includes the following steps:

1、 Determine the shape and size of the product: Firstly, based on the design drawings of the product, understand the specific shape and size parameters of the product.

2、 Unfolding calculation: Unfolding a three-dimensional product into a two-dimensional plane shape and using it to calculate the required sheet area size.

3、 Consider the stretching coefficient: The stretching coefficient is an important indicator to measure the maximum deformation degree that a metal sheet can achieve during the deep drawing process, and different materials have different stretching coefficients. For example, in general, the tensile coefficient of copper can be taken as 1.6-2.0, while that of steel can be taken as 1.4-1.8. When calculating, it is necessary to consider the possible thinning of thickness during the stretching process and increase the amount of material appropriately.

4、 Reserved margin: In actual production operations, a certain margin is usually left to ensure product quality. These allowances include process allowances (such as trimming allowances, etc.) and safety allowances (to prevent deviations from causing scrap).

5、 Comprehensive consideration: Finally, it is necessary to comprehensively consider factors such as production equipment capacity and production technology to obtain the final result.

By scientifically and reasonably calculating the materials required for hardware stretching parts from the above five aspects, production costs can be effectively reduced and economic benefits can be improved. At the same time, it also helps to enhance the competitiveness of enterprises and bring greater development space for them.