Grooving Tools 2018 by Sumitomo

More catalogs by Sumitomo | Grooving Tools 2018 | 42 pages | 2018-07-11

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Page 18 of Grooving Tools 2018

sec-grooving tools gndtype tips for facing important point for groove expansion recommended chipbreakers mg holder selection min machining diameter max machining diameter ml gg gl gf ga 1 2 3 min machining diameter 4 5 ・ choose a holder so the external diameter of the groove to be machined first can come in the maximum and minimum machining range of the said holder ・ if the first groove is within the valid machining diameter range there will not be any limitations from the second and later passes ・ during groove expansion if the first groove is within the valid machining diameter range there will not be any limitations from the second and later passes important point for traverse turning recommended chipbreakers mg ml rn from a holder rigidity standpoint we recommend machining from the external diameter toward the internal diameter external diameter side → internal diameter side f internal diameter side → external diameter side feed direction feed direction principal cutting force cutting point principal cutting force grooving tools cutting point when machining from internal diameter to external diameter the principal cutting force takes up less of the insert so it will become less rigid grooving cut-off threading ・ during face traverse machining if the first groove is within the valid machining diameter range there will not be any limitations from the second and later passes ・ choose the lower limit of the recommended cutting conditions for the chipbreaker and straighten and discharge the chip in face grooving broken chips can easily get caught in the groove and cause a problem ・ break chips by step feeding tips for internal diameter machining important point for internal diameter machining recommended chipbreakers ml gl gf if the prepared hole machining diameter is too small use a low feed type chipbreaker ml type or gl type that will make the chip curls smaller for efficient chip evacuation mg ml gcmn3004-mg gg gcmn3002-ml gcmn3002-gg gl gcmn3002-gl work material scm415 prepared hold dia ø25 mm holder gndi r2532-t306 insert:gcm n300 ○ ○○ cutting conditions vc 100 m/min f 0.1 mm/rev ap 3.0 mm wet internal diameter external diameter gg gg   gcmn3002-gg f18 even in the same cutting conditions the chip shapes vary between internal machining and external machining work material scm415 holder gndl r2525m-320 insert gcm n3002-gg cutting conditions vc 100 m/min f 0.10 mm/rev ap 5 mm wet