用电阻应变片法测试了管棒材拉拔、矫直和退火过程中产品表面残余应力，研究了管棒材残余应力随工艺参数变化的规律。
The surface residual stress of tube and bar after drawing straightening and annealing, under different processing conditions, were measured by means of resistance strain gauge.
铝及铝合金。冷拔棒材条材和管材。第8部分：多孔拉拔管尺寸和形状公差。
Aluminium and aluminium alloys. cold drawn rod bar and tube. part 8 : porthole tubes, tolerances on dimensions and form.
在现代的金属工艺中，为节约材料和提高材料性能，对线材或棒材等长材经常采用拉拔工艺进行加工。
In modern metal process, in order to save material and improve its property, wire or rod are often processed by drawing.
在现代的金属工艺中，为节约材料和提高材料性能，对线材或棒材等长材经常采用拉拔工艺进行加工。
In modern metal process, in order to save material and improve its property, wire or rod are often processed by drawing.
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