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机械制造工艺是机械工程学中的一个重要组成部分。本文试以成形和变性为线索对机械制造工艺中的几个共性问题作一初步探讨。 一、工艺与机械制造工艺 1.物质生产是人类赖以生存的基础。马克思说:“在劳动过程中,人的活动借助劳动资料使劳动对象发生预定的变化。”工程技术的劳动对象不外乎材料,能量和信息。机械制造工艺的劳动对象是材料。“预定的变化”是人在变革自然中主观预期的结果对材料来说不外乎几何形状变化(包括形状、尺寸、表面微观形态等)和性能变化(包括力学、热学、电磁学、化学等性能),试简称为成形和变性。
Mechanical manufacturing process is an important part of mechanical engineering. This article attempts to shape and degeneration as a clue on the mechanical manufacturing process to make a preliminary discussion of several common issues. First, technology and machinery manufacturing process 1 material production is the basis for human survival. Marx said: “In the process of labor, human activity takes the labor information to make a predetermined change in the object of labor.” The object of labor in engineering is nothing more than material, energy and information. The object of work of mechanical manufacturing process is the material. “Scheduled change” is the result of a subjective expectation of a person in changing nature to nothing more than a geometric change (including shape, size, surface micromorphology, etc.) and a change in properties (including mechanics, heat, electromagnetics, chemistry, etc.) Performance), abbreviation called forming and degeneration.