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（畢業(yè)設計/論文題目）
摘要
通過對制件的工藝計算及拉深翻邊時的受力，應力及金屬流動狀態(tài)進行分析，設計并改進了反拉深模的結構，保證了零件尺寸的要求，消除了料厚變薄等缺陷，此模具結構簡單，實用性強，提高勞動生產率，為防止制件起皺和拉裂常通過改善材料力學性能和合理確定凹模圓角半徑，同時分析了該制件的工藝性。設計了拉深模具，并介紹了所用模具材料特點
關鍵詞 拉深模 設計 料厚變薄 改進
（畢業(yè)設計/論文英文題目）
Abstract
Through the technological calculation of the product and the analysis of the exerted force ,stree and metal flowing status when drawing for ward and backward,the back ward drawing die was desingal and improved in its structure,which ensured the requirement of the part dimensions and eliminated some defects such as the material thickness becoming thinner,The structure of the die for the technological process is simple and practical,it can increase the production efficiency,in order to ensure the uniformity of the blanking clearance of the die ,inorganic adhesive is used to bord and fix the punch to eliminate manufacturing errors,after an analysis of the technological property of the producte,the dimensions of the blank were determined and the drawing die for the part was designeal the characteristics of the die material were introduced at last.
Key words backward drawing die design material thickness getting thinner improvement