Method for superposing and punching metal material and non-metal material

Abstract

The invention provides a method for superposing and punching a metal material and a non-metal material. By means of the processing methods of clearance selection, raw material preparation, material pressing force regulation, concave die configuration and superposed material lamination, the setting of key parameters of punching clearance, material pressing force and punching pressures in the superposing and punching process of the metal material and the non-metal material is realized, the requirements on simultaneously punching two different materials are met, and a finished product well laminated with the non-metal material can be directly obtained after the punching process, thereby omitting the procedure of independently punching and laminating the two materials; and in addition, in theprocess of superposed material lamination, the configuration of an automatic glue coating device better benefits the omission of the procedure of manual gummed paper paste and the avoidance of the problems of inaccurate positioning and unfirm paste caused by manual gummed paper paste, thereby effectively improving the quality of finished products. The punching method provided by the invention canbe used for producing the finished products in a continuous die stamping way, thereby greatly improving the production efficiency.

Description

【Technical field】 [0001] The invention relates to a sheet metal stamping method, in particular to a sheet metal stamping method for simultaneously stamping stacked metal materials and non-metal materials. 【Background technique】 [0002] In the known sheet metal stamping, the raw materials are mainly metal materials. However, in actual production, due to the special needs of some products, a layer of non-metallic materials is also required to be applied in addition to the metal material of the final product, and such non-metallic materials are often soft materials such as films. The hardness and mechanical properties of metallic materials and non-metallic materials are quite different, and the conditions and characteristics required in the stamping method mainly include stamping force (shearing force), unloading force, pressing force (with flatness requirements, etc.) and punching force. There are four key parameters of the cutting gap. To stamp out the product, it is necess...

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Problems solved by technology

The hardness and mechanical properties of metallic materials and non-metallic materials are quite different, and the conditions and characteristics required in the stamping method mainly include stamping force (shearing force), unloading force, pressing force (with flatness requirements, etc.) and punching force. There are four key parameters of the cutting gap. To stamp out the product, it is necessary to ensure the separation of the stamping die and the raw material after stamping. This requires sufficient stamping force. That is to say, the unit shearing force of the stamping force is greater than the shear strength of the raw material. , for this reason, metal materials and non-metal materials require different blanking forces per unit area. For the same reason, different materials require different unloading forces and pressing forces. In addition, Non-metallic materials are easily deformed and thinned during the stamping process, non-metallic materials are easy to flow to the notch surface of the metal part during the stamping and cutting process, and non-metallic materials are easy to adhere to the die surface of the stamping die, which affects normal stamping. There are stamping methods that cannot be overcome, so simultaneous stamping of metal materials and non-metal materials cannot be realized

In the existing stamping method for manufacturing such products, only two types of metal / non-metal materials can be stamped separately, and then the production of the product can be completed by manually pasting the non-metal material on the metal material. The production efficiency is limited, and it is also accompanied by such as 1. The investment in tooling equipment is large due to the need to manufacture hardware molds and film cutting molds separately; 2. The increase in manufacturing labor costs caused by the need for a large number of employees to manually work on the film; 3. Labor Sticking film, which limits the production speed and low production efficiency; 4. Manual film sticking, it is easy to miss sticking, wrong sticking, not firm sticking, etc., and the product defect rate is high; It is difficult to overcome the problem that the direction is easy to paste in reverse

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