When the outcome of the design evaluation is satisfactory,the design documentation is prepared.This includes the preparation of drawings,reports,and bills of materials.Conventionally,blueprints are made from the drawings and passed on to manufacturing.
As illustrated in Fig. 10-1,the manufacturing process begins with process planning,using the drawings from the design process,and it ends with the actual products.The outcome of process planning is a production plan,a materials order,and machine programming.Other special requirements,such as design of jigs and fixtures,are also handled at this stage.The relationship of process planning to the manufacturing process is analogous to that of synthesis to the design process:It involves considerable human experience and qualitative decisions.This description implies that it would be difficult to computerize process planning.Once process planning has been completed,the actual product is produced and inspected against quality requirements.Parts that
pass the quality control inspection are assembled,functionally tested,packaged,labeled,and shipped to customers.
參考譯文:
當設計評價結果令人滿意時,就準備設計文檔。設計文檔包括圖紙、報告和材料清單的準備。按常規,應將設計圖紙制成藍圖交送制造部門。
如圖10-1所示,制造過程根據設計過程的圖紙始于工藝計劃,止于實際的產品。工藝計劃的結果就是生產計劃、材料訂單和加工程序。其他諸如設計鉆模和夾具這樣的特殊要求都在這一階段進行處理。工藝計劃與制造過程的關系就如同綜合與設計過程的關系:它涉及到許多經驗和定性的判斷,這表示很難對工藝計劃進行計算機化。一旦工藝計劃結束,便開始生產實際產品并根據質量要求進行檢查。對通過質量檢查的零件進行組裝、功能測試、包裝、貼標簽并發運給客戶。
NOTES:
[1] 本句主要結構是They have tried to use... to automate... and tie...,其中to use有3個并列賓語;separate此處為形容詞,義“分開的”、“獨立的”等。
[2] in the form of a sketch or a layout drawing以草圖或布局圖的形式;that shows...定語從句,修飾 sketch or a layout drawing。
KEYWORDS:
CAD(computer-aided design) 計算機輔助設計
CAM(computer-aided manufacturing) 計算機輔助制造
CAE(computer-aided engineering) 計算機輔助工程
product cycle 產品周期
prototype 原型
feasibility 可行性
qualitative 定性的
symmetry 對稱,勻稱
cross-sectional property 截面性質
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