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Blanking technology

A blanking and crafting technology, applied in the direction of manufacturing tools, metal processing equipment, plasma welding equipment, etc., can solve the problems of high production cost, low product quality, low yield rate, etc., to improve product quality and production efficiency, with reasonable collocation Coordinated, low-cost manufacturing effects

Inactive Publication Date: 2016-06-29
CHONGQING YONGLIN MACHINERY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing blanking process has unreasonable process arrangement, numerous processes, unreasonable selection of process parameters, unreasonable collocation of process parameters, and high requirements for operator experience, resulting in high production costs, low product quality, and low yield. not tall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with embodiment:

[0018] A blanking process, comprising the steps of:

[0019] 1) Preparation before cutting:

[0020] 1.1) The blanking of the plate should be cut by mechanical shearing, and the blanking of the profile should be cut by grinding wheel or sawing. The shear slope of the end should not be greater than 2.0mm, and the burr should be removed;

[0021] 1.2) Carbon steel pipe cutting should be cut with a pipe cutter, and large diameter steel pipes (DN greater than or equal to 80mm) can also be cut with grinding wheels or plasma cutting machines;

[0022] 1.3) The stainless steel pipe should be cut with a pipe cutter or plasma method; when cutting or grinding with a grinding wheel, a special grinding wheel should be used;

[0023] 2), blanking

[0024] 2.1) The vertical tolerance between the cutting surface and the steel surface shall not be greater than 10% of the steel thickness, and shal...

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PUM

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Abstract

The invention discloses a blanking technology. The blanking technology includes the following processes of (1) preparation before blanking and (2) blanking. Specifically, the process (2) includes the steps that (2.1) the perpendicularity tolerance of the cutting surface and the surface of a steel product can not be larger than 10% of the thickness of the steel product and can not larger than 2 mm; (2.2) a steel plate is leveled after blanking, and it is required that the flatness tolerance of every square meter of the steel plate is not larger than 1.5 mm; (2.3) the straightness tolerance of straightened profiles such as channel steel, I-shaped steel, angle steel and round steel after blanking is not larger than 1.5 mm every meter; (2.4) the perpendicularity tolerance of the blanked end face and the axis of a steel tube is one percent of the diameter of the steel tube and can not be beyond 2 mm; and (2.5) the cutting face is flat without cracks, burs, protrusions, pits, necking openings, slag, iron oxide, iron chips and the like, and the surface of a material after blanking has no scratch, abraded portion or corroded portion. The blanking technology has reasonable procedures, the manufacturing cost is low, all parameters are matched in a reasonable and coordinated mode, and the product quality and production efficiency can be improved effectively.

Description

technical field [0001] The invention relates to a blanking process. Background technique [0002] The existing blanking process has unreasonable process arrangement, numerous processes, unreasonable selection of process parameters, unreasonable collocation of process parameters, and high requirements for operator experience, resulting in high production costs, low product quality, and low yield. not tall. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a blanking process with reasonable process and low manufacturing cost. [0004] To achieve the above object, the present invention provides [0005] A blanking process, comprising the steps of: [0006] 1) Preparation before cutting: [0007] 1.1) The blanking of the plate should be cut by mechanical shearing, and the blanking of the profile should be cut by grinding wheel or sawing. The shear slope of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D21/00B23K10/00B24B27/06B23P13/02
Inventor 毛永林
Owner CHONGQING YONGLIN MACHINERY EQUIP