METHOD FOR LEVELING SAW

PURPOSE:To easily obtain desired leveling strength, by pressing the specified part to be leveled prior to the other part, and further projecting shot particles to adjust the strength in the cooling of the saw material for hardening and/or tempering. CONSTITUTION:When the saw material heated to a har...

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Bibliographische Detailangaben
Hauptverfasser:	NOGUCHI MASAMI, UMETSU JIRO, EBARA SEIJI, KAWAHARA MASAJI, MATSUMOTO ISAO
Format:	Patent
Sprache:	eng
Schlagworte:	BROACHING CHEMISTRY FILING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR MACHINE TOOLS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PLANING SAWING SCRAPING SHEARING SLOTTING TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To easily obtain desired leveling strength, by pressing the specified part to be leveled prior to the other part, and further projecting shot particles to adjust the strength in the cooling of the saw material for hardening and/or tempering. CONSTITUTION:When the saw material heated to a hardening temp. is cooled and/or the material heated to a tempering temp. is cooled, the required part to be leveled around the toothed part is pressed prior to the other part. The other part is then pressed afterward. The cooling rates at both parts are differentiated to produce compression stress at the required part. Consequently, tensile internal force is produced at the region between the required part and the toothed part. Shot particles are then projected to adjust the leveling strength.