プラスチックのレーザフォーミングに関する研究　　試料厚さが変形特性に及ぼす影響

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書誌事項

タイトル別名
  • Study on Laser Forming of Plastic by YAG Laser. Effect of Specimen Thickness on Deformation Characteristics.
  • プラスチック ノ レーザフォーミング ニ カンスル ケンキュウ シリョウ アツサ ガ ヘンケイ トクセイ ニ オヨボス エイキョウ
  • Effect of Specimen Thickness on Deformation Characteristics
  • 試料厚さが変形特性に及ぼす影響

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抄録

In this study, the effect of specimen thickness on machining characteristics and deformation mechanism of laser forming for plastic material with YAG laser were made clear by the experimental analysis. Each specimen with different thickness can be bent to 90 degrees under proper machining conditions. The optimum laser power, in which bending angle takes a maximum under the same feed condition, increases with an increase of specimen thickness. In the case of thick specimen, the deformation occurs without a delay between the beginning point and the end one of irradiation just after finishing of laser scan. On the other hand, thin specimen is deformed from the beginning point of irradiation during laser scan at a small number of laser scan, since the rigidity of thin specimen is lower compared to that of thick specimen. Consequently, the bending angle per one laser scan is small in the case of thin specimen. However, the bending angle per one laser scan becomes larger at a large number of laser scan. Because it is considered that the increase of rigidity of specimen leads to the stable deformation, since the hardness of irradiated area increases with an increase of laser irradiation.

収録刊行物

  • 精密工学会誌

    精密工学会誌 68 (3), 466-471, 2002

    公益社団法人 精密工学会

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