出典:Wiktionary
出典:『Wiktionary』 (2026/04/02 20:19 UTC 版)
From 中期英語 shapper, shapere, schapare, scaper, scheppere, schuppere, alteration (perhaps due to Old Norse skaperi, skapari) of 古期英語 sċyppend, sċieppend (“shaper; maker; creator”), equivalent to shape + -er. Cognate with Dutch schepper, German Schöpfer, Danish skaber, Swedish skapare, Icelandic skapari.
出典:Wikipedia
出典:『Wikipedia』 (2011/06/26 20:08 UTC 版)
A shaper is a type of machine tool that uses linear relative motion between the workpiece and a single-point cutting tool to machine a linear toolpath. Its cut is analogous to that of a lathe, except that it is (archetypally) linear instead of helical. (Adding axes of motion can yield helical toolpaths, as also done in helical planing.) A shaper is analogous to a planer, but smaller, and with the cutter riding a ram that moves above a stationary workpiece, rather than the entire workpiece moving beneath the cutter. The ram is moved back and forth typically by a crank inside the column; hydraulically actuated shapers also exist.
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