Общий каталог Tungaloy 2020 - 2021 - страница 1637

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Clearance C1Overhang ratio L/DNominal size C1Pitch ød Effective diameter Lead angle øD SNR0006H06-2 SteelCarbideSNR0006H06-3 shankshankSNR0008H06-2 SNR0008H06-3 SNR0010K11 SNR0010K11-2 SNR0013L11 SNR0013L11-2 SNR0016M16 SNR0016M16-2 CNR0020P16 CNR0025R16 CNR0032S16 SNR0020Q22 SNR0020Q22-2 CNR0025R22 CNR0032S22 PreparedSNR0006K06SC-2 hole diameterSNR0006K06SC-3 SNR0008K06SC-2 SNR0008K06SC-3 SNR0010M11SC SNR0010M11SC-2 SNR0012P11SC SNR0012P11SC-2 Minor dia. ofSNR0016R16SC external thread SNR0016R16SC-2 Pitch diameterTSNR0016Q16 TCNR0020R16DT Minor dia. ofTCNR0025S16DT internal thread(TCNR0032T16DT) TSNR0020R22 TCNR0025S22DT GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex User’s Guide - Technical Reference A Selection of S T- t y p e To o l h o l d e r s Selection of internal threading toolholders B Relation between internal toolholders and machinable threads In the tables starting from next page, the relationships between toolholders,inserts, threads to be machined, and shims to be replaced are shown. In these Symbolstables, the criteria are set as follows. C • The minimum machining diameter. • The L/D ratio of the toolholder. Recommended • The lead angle of the thread. Usable• Cutting conditionsEspeciallywhenmachiningneartheminimummachiningdiameter,thex Needs replacing of the shim. D compensation for the lead angle should be done carefully. "2" indicates "Change to the shim Moreover, in threading, because chips generally can not be broken into small for 2° lead angle". pieces, the shank size should be selected in consideration of adequate ■ Unusable clearance (C1). E Internal diameterof thread Stock to be removed with full-profile insert. C1 ≥ 3 mm Internal thread( 1 mm for 6IR insert holders) F External R thread L/D ≤ 2¬᭺ G C2 L/D ≤ 3¬᭺ Internal thread L H How to use the tables qFirstly, find the nominal thread diameter. Example: M35 X 1.5wThe table indicates that the lead angle is 0°48ߙ. I eThe Cat. No. of the insert to be used corresponds with IR15ISO. rBy following the row to the right, and marks are found. The mark indicates the optimum toolholder type. The toolholders of mark are usable, but less rigid because the shank diameter against the threading diameter is smaller thanthose ofmarked toolholder. In this example, CNR0025R16 and TCNR0020R16DT are the optimum toolholders. Theinsert Cat.No. is 16IR15ISO. J tIn the case of M33 X 3 thread, the lead angle is 1°46ߙ. By following the row to the right. x mark is found. This indicates that the shim should be replaced to 2° type. For calculation of the lead angle, refer to page B405. Metric fine screw thread (ISO) (For full size of this table, see page L051.) K Shank material Steel shank Carbide shank “Tsuppari-Ichiban” Insert size 6IR 11IR 16IR 22IR 6IR 11IR 16IR 16IR 22IR Holder Cat. No. L Insert Cat. No. M33ϫ1.5 1.5 32.03 0º51´ IR15ISO M33ϫ2 2 31.7 1º09´ IR20ISO M33ϫ3 3 31.05 1º46´ IR30ISO ™M35ϫ1.51.534.030º48´IR15ISOM36ϫ1.51.535.030º47´IR15ISO ™ M M36ϫ2 2 34.7 1º03´ IR20ISO M36ϫ3 3 34.05 1º36´ IR30ISO ™ ™ M38ϫ1.5 1.5 37.03 0º44´ IR15ISO M39ϫ1.5 1.5 38.03 0º43´ IR15ISO Tungaloy L049