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4、金屬材料成形基礎(chǔ),主講徐曉峰,第八章機械加工工藝過程的基礎(chǔ)知識,1機械加工工藝過程的基本概念,2工件的安裝和夾具,3工件工藝規(guī)程的制定,4典型零件工藝過程,第八章機械加工工藝過程的基礎(chǔ)知識,1機械加工工藝過程的基本概念,一、生產(chǎn)過程和工藝過程,工藝是指制造產(chǎn)品的技巧、方法和程序。機械制造過程中，凡是直接改變零件形狀、尺寸、相對位置和性能等，使其成為成品或半成品的過程，稱為機械制造工藝過程。它通常包。

5、箱體類零件加工 一概述二典型箱體類零件加工工藝過程與分析 一箱體類零件的功用及結(jié)構(gòu)特點 1 箱體類零件的功用 箱體是各類機器的基礎(chǔ)零件 它將機器和部件中軸 套 齒輪等有關(guān)零件連接成一個整體 并使之保持正確的位置。

6、第9章 機械制造工藝規(guī)程設(shè)計,本章內(nèi)容: 介紹了生產(chǎn)過程、工藝過程； 引入了工藝過程組成的概念； 講述了制定機械加工工藝規(guī)程的步驟和方法； 重點討論了機械加工工藝過程設(shè)計中的主要問題(定位基準的選擇，加工路線的擬訂，工序尺寸及公差的確定)； 簡要分析了工藝過程的經(jīng)濟性。 學(xué)習(xí)要求: 熟悉機械加工工藝過程； 理解工序、安裝、工位、工步及走刀的含義； 掌握機械加工工藝過程設(shè)計的基本原理、原則和方法。

7、4-4沖壓模主要零件制造,3.沖壓模工作零件的加工工藝過程,一、復(fù)習(xí) 1、掌握模具制造技術(shù)的關(guān)鍵在于工作零件的制造，它決定著（ ）、（ ）以及模具的（ ）。,你們想到了嗎？,答案：模具精度、工藝性能、壽命。,答對沒有,2、沖裁模工作零件尺寸精度一般為（ ） A、IT12 IT9 B、IT11 IT8 C、IT10 IT7 D、IT9 IT6,答案：D,3、要求凸模和凹模的工作部分具有較高硬度和耐磨性以及良好的塑性對嗎？,答案：錯的，要求凸模和凹模的工作部分具有較高硬度和耐磨性以及良好的韌性。,新課,3.沖裁模工作零件的加工工藝過程 沖裁模具的凸模加工主要是外形。