熱定数の温度依存性を考慮した電子ビーム・レーザビーム熱処理の加熱・冷却性の一考察

DOI Web Site

書誌事項

タイトル別名
  • Temperature analysis of heat treatment by electron and laser beams.
  • ネツ テイスウ ノ オンド イゾン セイ オ コウリョシタ デンシ ビーム レ

この論文をさがす

抄録

Temperature analysis based on temperature-dependence of thermal properties (specific heat and thermal conductivity) is carried out using numerical calculations. An explicit form of finite difference method was adopted; for constant thermal properties, target size effect is strong compared with the case where properties vary with temperature. For the same sizes, the target of properties varying with temperature is heated more rapidly than that whose properties are independent of temperature; for 2.08 mm radius and 1.06 mm thickness carbon steel, times required to raise the temperature at center point by 1 300 K by a beam of 1 kW power and 1 mm radius are 2.78 and 1.77 ms for the former and the latter, respectively. Under a fixed treatment time, isothermal planes extend more widely in the target whose properties depend on temperature than in that of constant properties. To obtain heat treatment conditions, the consideration based on temperature-dependence of thermal properties must be done.

収録刊行物

  • 精密工学会誌

    精密工学会誌 53 (4), 565-570, 1987

    公益社団法人 精密工学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ