Wiktionary英語版

出典：Wiktionary

back-spotface

出典:『Wiktionary』 (2026/03/26 22:51 UTC 版)

語源

From back- +‎ spotface.

動詞

back-spotface (third-person singular simple present back-spotfaces, present participle back-spotfacing, simple past and past participle back-spotfaced)

  1. (machining) To spotface from the backside of a workpiece by using a tool that passes through a through hole, deploys a cutting edge (or receives it by manual insertion from an operator), spotfaces the far side, retracts the cutting edge (or has it removed), and then retreats back through the hole (toward the tool's origin).
    Hypernyms: spotface < cut
    Coordinate terms: back-counterbore, counterbore; back-countersink, countersink; backbore, bore
    We won't need any second operation on these parts. We're going to back-counterbore and back-spotface all of these features on the backside.

名詞

back-spotface (plural back-spotfaces)

  1. A spotface that is so made.
    Hypernyms: spotface < feature
    Coordinate terms: back-counterbore, counterbore; back-countersink, countersink; bore
    There's no second operation on these parts. The backside features are all back-counterbores and back-spotfaces.
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