• 해운
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• no.4 s.27
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• pp.2-9
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• 2006

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.8 no.5
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• pp.96-101
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• 1999

This study suggests an algorithm for tooth profile generation of free from curve involute gear, a special gear of which the pitch line is a free curve instead of a circular one. For the first, a methodology for calculation of the tooth curve is developed and formulated Then the formulated algorithm, is programmed for manufacturing and verified by computer graphics. Next the calculated results as changed in to NC codes to apply to wire electric discharge machine(WEDM). Finally, the machined gear is examined in engagement with a standard involute gear.

• Proceedings of the KSEEG Conference
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• 2001.04a
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• pp.256-258
• /
• 2001

• Proceedings of the KSEEG Conference
• /
• 2002.04a
• /
• pp.341-343
• /
• 2002

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2007.11a
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• pp.429-430
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• 2007

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.32 no.2
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• pp.38-46
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• 2004

• Proceedings of the Korean Ceranic Society Conference
• /
• 2003.04a
• /
• pp.125.2-125
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• 2003

• Proceedings of the Materials Research Society of Korea Conference
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• 2005.05a
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• pp.142-142
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• 2005

• Proceedings of the Korean Ceranic Society Conference
• /
• 2003.10a
• /
• pp.34.1-34
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• 2003

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.11 no.5
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• pp.211-217
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• 2001

Czochralski법에 의한 ZnWO₄단결정을 [100], [101], [001] 방향으로 성공적으로 성장시켰다. 각 축 방향에 따른 성장조건이 rotation speed, pulling rate, 성장된 결정의 직경 등의 변수를 가지고 조사되어졌다. 성장된 결정의 냉각시 발생되는 균열을 annealing 효과에 의하여 방지할 수 있었다. 성장된 결정의 방위는 Laue back reflection으로 결정하였다. 각 축 방향으로 성장된 결정의 미세구조적 특징이 논하여졌으며, 경도, 열팽창계수 및 유전상수의 물리적 특성이 평가되어졌다.