The Study of the Thick Stock by Fine Hydro-Mechanical Blanking

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Project title

Code/計畫編號

MOST103-2221-E019-004

Translated Name/計畫中文名

厚材成品精密液壓下料之研究

Project Coordinator/計畫主持人

Jang-Ping Wang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Marine Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=8311013

Year

2014

Start date/計畫起

01-08-2014

Expected Completion/計畫迄

31-07-2015

Bugetid/研究經費

713千元

ResearchField/研究領域

機械工程
材料科技

本研究利用田口品質工程法(Taguchi Experimental Method)建立最佳化之製程參數，套用在厚板材液壓式精密下料(Fine Hydro-Mechanical Blanking)，使用材料為10mm之鋁合金1050板材進行沖壓。雖屬於精密下料，但使用的模具並無傳統上模板的V形壓環，而是於原始胚料上加工一道寬5mm之U形槽，並在該槽與胚料底部注入液壓力，藉此讓胚料成形時得到靜水壓力，以提高成品斷面品質。實驗預設了4項可能影響結果的因子，分別為：溝道深度、溝道壓力、背壓力及壓料力，再利用L9(3)4直交表排列9組實驗，最後以ANOVA變異數分析找出最佳製程參數組合。實驗結果顯示，影響品質最重要的因子為壓料力，佔總貢獻率62%，溝道深度的影響最小，佔總貢獻率8%，將分析出的最佳化製程參數再做一次實驗，得到最終成品平均光亮面達9.96mm。此實驗驗證了使用液壓式精密下料方法沖壓厚板材的可能性，供學界及業界參考所用。Taguchi‘s quality engineering techniques were used in this investigation. In traditional fine blanking is more common in the 2mm sheet metal forming, but this study material is pressed by 10mm aluminum alloy sheet 1050. Experimental design the four factors that might influence the process, are as follows: depth channel, channel pressure, ejector pressure and holder force. L9(3)4 arrange 9 orthogonal set up of experiments, and finally to ANOVA analysis of variance to identify the optimum process condition. Experimental results show that holder force parameters rate 62%, the impact of channel depth at rate 8%, on average shear zone 9.96mm. In the future, this technology can be widely applied.

Keyword(s)

液壓式之機構
精密下料
厚板胚料
無撕裂面之成品
Hydro-mechanical mechanism
Fine blanking
Thick stock
Non-fracture zone product

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The Study of the Thick Stock by Fine Hydro-Mechanical Blanking

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