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锻压加工
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锻压加工
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工学
锻压加工
释
forging and stamping
锻压加工
对坯料施加外力,使其产生塑性变形,改变尺寸、形状及改善性能,用以制造机械零件毛坯或工件的塑性加工技术。是锻造与冲压的总称,属于二次塑性加工。锻压加工是利用一次塑性加工(轧制、挤压及拉拔等)所提供的棒材、板材、型材、管材及线材进行再加工,但在大型锻件生产时可直接用铸钢锭为原料。在锻造加工中,坯料整体发生明显的塑性变形,有较大量的塑性流动。在冲压加工中,坯料主要通过改变各部位面积的空间位置而成形,其内部不出现较大距离的塑性流动。
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partial correlation
partial correlation analysis
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partial decay constant
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partial denominator
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partial depleted silicon on insulator device
partial derangement
partial derivation
partial derivative
partial derivative of higher order
partial derivative relations
partial derivatives of higher orders
partial derived functor
partial diallel mating design
partial difference
partial difference equation
partial difference quotient
partial differential
partial differential coefficient
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