One-step press forming process and manufacturing method of CPU (Central Processing Unit) back board

Abstract

The invention provides a one-step press forming process and a manufacturing method of a CPU (Central Processing Unit) back board. The one-step press forming process is a method which makes different thicknesses by a same material for one step, and comprises the following steps of: measuring the original thickness and area of a to-be-thinned part of the material so as to obtain the original volume of the to-be-thinned part of the material; calculating the thickness and area of the to-be-thinned part of the material after treatment so as to obtain the volume of the to-be-thinned part of the material after treatment; subtracting the volume of the to-be-thinned part of the material after treatment from the original volume of the to-be-thinned part of the material so as to obtain a to-be-removed volume; and removing the to-be-removed volume from the to-be-thinned part of the material; and pressing the to-be-thinned part of the material. The one-step press forming process provided by the invention has the advantages of simplifying a process and saving cost.

Description

technical field [0001] The invention relates to a stamping forming process, in particular to a process for thinning and forming with only one stamping. Background technique [0002] Generally, if you want to process on the same plate, so that the same plate has different thicknesses, and the area of ​​the thinner part of the plate is limited, you can usually use milling to thin the thickness, or repeat it many times. Stamping and trimming procedures to change the thickness of the sheet. The latter is to use the stamping process to thin the part where the plate is to be thinned, so that the thickness is reduced. In addition, the edge trimming process is used to make the area of ​​the thinner part of the plate not exceed the limited size. The existing method is through repeated stamping. And trimming, so that the specifications of the thinner part of the plate gradually meet the requirements. [0003] Or, use the method of joining plates of different thicknesses together to ...

AI Technical Summary

Problems solved by technology

[0004] However, for the above methods of manufacturing different thicknesses, the milling processing method is more expensive; the stamping and edge trimming procedures require multiple processes, which makes the processing time and cost high; and the plates of different thicknesses are manufactured separately, and then screwed or screwed. Joining by riveting requires not only the manufacturing cost of the respective plates and the cost of molds, but also the assembly cost and time of screwing or riveting

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