English Dictionary

high speed steel

名詞

可算名詞 不可算名詞

(metallurgy) A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical.

日本語の意味

高速工具鋼。20世紀初頭に発明された工具鋼の一種で、高温下でも硬度と焼入性（靭性）を保つため、これまでの工具鋼が高温で軟化する問題を解決し、より高速な切削作業が可能となる。

The machinist chose a high speed steel drill bit to increase cutting speed without the tool losing its hardness.

その機械工はドリルビットに、高温でも硬さを保ち軟化しない工具鋼（高速度工具鋼）を選び、より高速で切削できるようにした。

意味（1）

(metallurgy) A kind of tool steel, invented in the early 20th century, which retains its hardness and temper at high temperatures (at which previous kinds of tool steel would soften), thus allowing cutters made from it to be employed at higher cutting speeds than were previously practical.

high speed steels （ plural ）