A High Thinning Ratio Deep Drawing Process for Deep Tube Parts

A technology of thinning rate and deep cylinder, applied in forming tools, manufacturing tools, metal processing equipment, etc., can solve problems such as pulling cracks, breaking, deformation, etc., to reduce wire drawing, uniform wall thickness, and reduce deep drawing steps. Effect
CN110722045BActive Publication Date: 2021-04-02ANHUI UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI UNIVERSITY OF TECHNOLOGY
Publication Date
2021-04-02

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Abstract

The invention discloses a deep cylinder piece high-thinning-rate deep drawing technology, and belongs to the technical field of plastic material processing. The deep cylinder piece high-thinning-ratedeep drawing technology comprises the three steps of preliminary forming, pre-thinning and stepped forming. During pre-thinning and stepped forming, a high-thinning-rate deep drawing die is adopted for deep drawing, the possibility of quality defects of workpieces can be reduced, and during stepped forming in the last stage, the segmented deep drawing thinning manner is adopted for the workpiecesin the technology, the quality defects caused by the excessive deep drawing depth are effectively overcome, and accordingly a thin-wall deep cylinder piece with the high thinning rate can be obtainedthrough deep drawing.
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Description

technical field

[0001] The invention belongs to the technical field of plastic material processing, and more specifically relates to a deep-drawing process for a deep cylinder. Background technique

[0002] With the development trend of light and thin existing workpieces, the requirements for the wall thickness of various workpieces in the market are also getting higher and higher. In the field of deep drawing of cylindrical parts, cylindrical parts with a small ratio of diameter to height are generally called deep cylindrical parts. Due to the high drawing height of deep cylindrical parts, one-time deformation is prone to wire drawing, deformation, cracking, etc. Quality defects, so multi-step deep drawing is usually used for deep tube parts.

[0003] The existing deep-drawing methods of deep tubes mainly include equal-wall deep-drawing and thinning deep-drawing. The equal-wall deep-drawing process generally has the disadvantages of more drawing processes, multi-step annea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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