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Punching technology of silicon steel sheet

A silicon steel sheet and process technology, applied in the field of stamping process of silicon steel sheet, can solve the problems of easy deformation or burr, uneven cooling rate, complicated processing process, etc., so as to reduce the risk of dislocation of assembly, and facilitate subsequent assembly and location. High precision effect

Inactive Publication Date: 2017-10-20
太仓市华天冲压五金制品厂
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Problems solved by technology

[0003] Because the thickness of silicon steel sheet is generally thin, the texture is soft, the processing process is relatively complicated, and it is easy to produce deformation or burrs, and the uneven cooling rate after forming the silicon steel sheet will cause deformation of the stamped workpiece. Silicon steel sheets are generally composed of dozens of layers. The core is used, the positioning requirements are high, and the requirements for later assembly are more stringent

Method used

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  • Punching technology of silicon steel sheet
  • Punching technology of silicon steel sheet

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Embodiment

[0032] The invention discloses a stamping process of a silicon steel sheet, such as Figure 1 to Figure 2 shown, including the following steps:

[0033] 1) Before stamping, place the raw material sheet in the oven, fix the front end of the raw material sheet to the billet making station of the composite mold, turn on the oven to heat the raw material sheet, and heat the mold to control the heat preservation of the mold;

[0034] 2) Stamping the blank, the pressing tool compresses the blank, and the composite mold directly stamps the raw material sheet at one time through the blanking punch to obtain the silicon steel sheet blank;

[0035] 3) Punch the middle through hole, the composite punching machine moves the billet prepared in step 2) to the middle through hole stamping station, the pressing tool presses the billet, and the through hole punch punches the billet at one time to obtain the first half finished product;

[0036] 4) Stamping the enameled wire groove, the compo...

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Abstract

The invention discloses a stamping process of a silicon steel sheet, which comprises the following steps: before stamping, uniformly heating the raw material plate, heating the mold to the same temperature as the raw material plate; stamping the blank; stamping the middle through hole; one-time stamping the enameled wire groove; stamping Winding port; one-time stamping positioning groove; stamping boundary; cooling treatment, the invention can reduce the stamping times of the enameled wire groove, make the positioning of the enameled wire groove more accurate, facilitate later assembly, and the stamping process adopts constant temperature stamping forming, which improves the stamping forming performance , reducing the deformation caused by uneven cooling caused by uneven heating, which is more beneficial to dimensional stability.

Description

technical field [0001] The invention relates to the technical field of processing silicon steel sheets, in particular to a stamping process for silicon steel sheets. Background technique [0002] Silicon steel sheets are generally used as iron cores of transformers, motors, generators, etc. or important magnetic materials for other electrical instruments. They have excellent electromagnetic properties, are widely used, and have higher production technology than ordinary steel products. [0003] Because the thickness of silicon steel sheet is generally thin, the texture is soft, the processing process is relatively complicated, and it is easy to produce deformation or burrs, and the uneven cooling rate after forming the silicon steel sheet will cause deformation of the stamped workpiece. Silicon steel sheets are generally composed of dozens of layers. The core is used, the positioning requirements are high, and the requirements for later assembly are even stricter. Contents...

Claims

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Application Information

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IPC IPC(8): B21D35/00
CPCB21D35/001B21D35/002
Inventor 黄晓雷
Owner 太仓市华天冲压五金制品厂
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