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首页> 外文期刊>電気加工学会誌 >Manufacturing of Wire-Drawing Die Using a Removal Method of Heat-Affected Zones by Oxidation of Cemented Carbides
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Manufacturing of Wire-Drawing Die Using a Removal Method of Heat-Affected Zones by Oxidation of Cemented Carbides

机译：通过氧化碳化物氧化，使用热影响区域的去除方法制造拉丝模具

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摘要

Heat-affected zones (HAZs) are generated by electrical discharge machining of cemented carbides. A surface modification method using an oxidation treatment of cemented carbides has been proposed as a removal method for the HAZs. The HAZs can be completely removed in the form of oxides through the oxidation treatment. In this study, a wire-drawing die with a bearing diameter of 10 mm was fabricated by wire electrical discharge machining (WEDM). Subsequently, this surface modification method for finishing the die was introduced to improve the die quality and to reduce the die manufacturing time. As a result, the surface integrity of the die is superior to that of the die finished by a conventional removal method. Defects such as cracks partially exist on a polished surface in the latter case. The HAZs are completely removed in 3 minutes by this oxidation treatment. It only takes 20 minutes to polish the die by incorporating this method into the die manufacturing process. The completion time of a wire-drawing die is approximately 50% shorter than that obtained by the conventional removal method.
机译：通过粘合的碳化物的放电加工产生热影响的区域（HAZS）。已经提出了使用碳化物碳化物处理处理的表面改性方法作为危害的去除方法。可以通过氧化处理以氧化物的形式完全除去HAZ。在本研究中，通过导线电气放电加工（WEDM）制造具有10mm的轴承直径的导线芯片。随后，引入了用于整理模具的该表面改性方法以改善模具质量并降低模具制造时间。结果，模具的表面完整性优于通过传统的去除方法完成的模具的表面完整性。在后一种情况下，诸如裂缝的缺陷部分存在于抛光表面上。通过该氧化处理将危害完全除去3分钟。通过将这种方法纳入模具制造过程，抛光模具只需要20分钟。线拉模的完井时间比通过传统的去除方法获得的时间大约为50％。

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