A process for producing a stamper substrate in which a rolled metal sheet can entirely be used as a substrate material to thereby enable maintaining high production yield.
本发明提供一种能够将金属轧制板整体作为基板用材料进行使用，并能够较高地维持制造成品率的压模用基板的制造方法。
The rolling experiment with lead as blank material is made in D51-160A hot ring rolling mill and the qualified pre-rolled ring of conical ring with inner steps is rolled.
采用铅环件试样在D51 - 160 A热轧环机上进行轧制实验，轧制出了合格的内台阶锥形环件预轧制环件。
In addition, the inner defect of the rolled material can also produce the formation of the shearing splitting.
另外，轧材内部存在缺陷也能促进剪切撕裂的形成。
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