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【正文】 ..............................................................................................................7 鍛件形狀復(fù)雜系數(shù) ...............................................................................................................7 鍛件材質(zhì)系數(shù) .......................................................................................................................7 零件表面粗糙度 ...................................................................................................................7 繪制三軸連桿鍛造毛坯簡圖 ......................................................................................................83 擬定零件工藝路線 ...............................................................................................................................9 定位基準(zhǔn)的選擇 ..........................................................................................................................9 精基準(zhǔn)的選擇 .......................................................................................................................9 粗基準(zhǔn)的選擇 .......................................................................................................................9 表面加工方法的確定 ..................................................................................................................9 加工階段的劃分 ..........................................................................................................................9 工序的集中與分散 ....................................................................................................................10 工序順序的安排 ........................................................................................................................10 確定工藝路線 ............................................................................................................................104 加工余量、工序尺寸和公差以及切削用量的確定 .........................................................................115 時間定額的計(jì)算 .................................................................................................................................157 方案綜合評價與分析 .........................................................................................................................178 體會與展望 ..............................................................................................
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