Effect of Airtight Clamping Mode on Quick Plastic Forming
碩士 === 國立中央大學 === 機械工程學系 === 106 === Quick plastic forming technology is usually used to manufacture the aluminum parts of automotive to achieve the goal of mass production. This thesis focuses on the feasibility to use quick plastic forming technology to make the shell of cellphone. The experiment...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2018
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| Online Access: | http://ndltd.ncl.edu.tw/handle/js74jw |
| Summary: | 碩士 === 國立中央大學 === 機械工程學系 === 106 === Quick plastic forming technology is usually used to manufacture the aluminum parts of automotive to achieve the goal of mass production. This thesis focuses on the feasibility to use quick plastic forming technology to make the shell of cellphone. The experiment material is 1mm SP5083 aluminum alloy sheet, and through the different ways of process mode and adjusting the process parameters to shorten the process time. Then measure the thickness of formed sheet and compare different mode of thickness. There are three types of process mode which distinguish by the die clamping type. Mode 1 is directly clamping to the specify pressure. Clamping pressure changes with blowing pressure in mode 2. Mode 3 is two stage clamping mode. The first stage is clamping slightly to pre-blowing, and the second stage is directly clamping to the specify pressure. The initial process time of experiment is 90 seconds and slowly reduced to 60 seconds. Different experiment process parameters will influences the completeness of sheet. There are cross section and corner section in thickness distribution. The more uniform the thickness distribution is, the better the shell of cellphone is.
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