Общий каталог Mitsubishi 2020 - 2021 - страница 709

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THREADING Threading Pitch (mm) Threading Pitch (thread/inch) Threading Pitch (mm) Inclination Angle ('°)Threading Pitch (thread/inch) THREADING CUTTING CONDITIONS OF MMT SERIES SELECTING A SHIM FOR THE MMT SERIES Lead Angle (%°) y FLANK ANGLE AND LEAD ANGLE Lead angle (%) depends on a combination of thread diameter and pitch. Select a shim so that the lead angle of the thread can coincide with the flank angles of the thread and insert ($1, $2). No need to change a shim for general threading with an MMT holder. When threading with a small diameter or large pitch, change the shim depending on the lead angle, referring to the table and graph below. When threading left hand threads,change to a shim with a negative inclination angle. Flank Angle ($2°)y SHIM REFERENCE TABLE (THREADING DIAMETER) (Thread angle 60˚ and 55˚)Flank Angle ($1°) LeadAngle Right Hand Thread (mm) Left Hand Thread (mm) * Pitch Threading(mm)impossible4.5° 3.5° 2.5° 1.5° 0.5° Threadingimpossible─ 1 .5° ─ 0 .5° 0.5 < & 1.7 &1.7 ─ & 2.3 &2.3 ─ & 3.0 & 3.0 ─ & 4.6 & 4.6 ─ & 9.1 > & 9.1 < & 3.6 & 3.6 ─ & 9.1 > & 9.1 0.75 < & 2.5 &2.5 ─ & 3.4 &3.4 ─ & 4.6 & 4.6 ─ & 6.8 &6. 8 ─ & 13.7 > & 13.7 < & 5.5 &5. 5 ─ & 13.7 > & 13.7 1 < & 3.3 &3.3 ─ & 4.6 &4.6 ─ & 6.1 & 6.1 ─ & 9.1 & 9.1 ─ & 18.2 > & 18.2 < & 7.3 & 7.3 ─ & 18.2 > & 18.2 1.25 < & 4.1 &4.1 ─ & 5.7 &5.7 ─ & 7.6 & 7.6 ─ & 11.4 & 11.4 ─ & 22.8 > & 22.8 < & 9.1 & 9.1 ─ & 22.8 > & 22.8 1.5 < & 5.0 &5.0 ─ & 6.8 &6.8 ─ & 9.1 & 9.1 ─ & 13.7 & 13.7 ─ & 27.4 > & 27.4 < & 10.9 & 10.9 ─ & 27.4 > & 27.4 1.75 < & 5.8 &5.8 ─ & 8.0 &8.0 ─ &10.6 &10.6 ─ & 16.0 & 16.0 ─ & 31.9 > & 31.9 < & 12.8 & 12.8 ─ & 31.9 > & 31.9 2 < & 6.6 &6.6 ─ & 9.1 &9.1 ─ &12.1 &12.1 ─ & 18.2 & 18.2 ─ & 36.5 > & 36.5 < & 14.6 & 14.6 ─ & 36.5 > & 36.5 2.5 < & 8.3 & 8.3 ─ &11.4 &11.4 ─ &15.2 &15.2 ─ & 22.8 & 22.8 ─ & 45.6 > & 45.6 < & 18.2 & 18.2 ─ & 45.6 > & 45.6 3 < & 9.9 &9.9 ─ &13.7 & 13.7 ─ &18.2 &18.2 ─ & 27.3 & 27.3 ─ & 54.7 > & 54.7 < & 21.9 & 21.9 ─ & 54.7 > & 54.7 3.5 < & 11.6 &11.6 ─ &15.9 &15.9 ─ &21.3 &21.3 ─ & 31.9 & 31.9 ─ & 63.8 > & 63.8 < & 25.5 & 25.5 ─ & 63.8 > & 63.8 4 < & 13.2 & 13.2 ─ &18.2 & 18.2 ─ &24.3 &24.3 ─ & 36.5 & 36.5 ─ & 72.9 > & 72.9 < & 29.2 & 29.2 ─ & 72.9 > & 72.9 4.5 < & 14.9 & 14.9 ─ &20.5 & 20.5 ─ &27.3 &27.3 ─ & 41.0 & 41.0 ─ & 82.1 > & 82.1 < & 32.8 & 32.8 ─ & 82.1 > & 82.1 5 < & 16.5 & 16.5 ─ &22.8 & 22.8 ─ &30.4 &30.4 ─ & 45.6 & 45.6 ─ & 91.2 > & 91.2 < & 36.5 & 36.5 ─ & 91.2 > & 91.2 G y SHIM REFERENCE GRAPH (Thread angle 60˚ and 55˚) * Back turning in the case of left hand threads. Right Hand Thread Left Hand Thread %=4.5° %=3.5° % : Lead Angle % : Lead Angle %=2.5° Threading impossible %=1.5°(Standard Shim) Threading %=─ 1.5° impossible %=0.5° %=─ 0.5° (1.97") (3.94") (5.91") (7.87") (1.97") (3.94") (5.91") (7.87") Threading Diameter (mm) Threading Diameter (mm) Note 1) When a thread lead angle < the tool flank angle, change the shim to prevent side interference with the insert. (Refer to the table on page G013 for the calculation of thread lead angle and tool flank angle.) y SHIM REFERENCE TABLE (THREADING DIAMETER) (Thread angle 30˚ and 29˚) LeadAngle Right Hand Thread (mm) Left Hand Thread (mm) * Pitch Threading(mm)impossible4.5° 3.5° 2.5° 1.5° 0.5° Threadingimpossible─ 1 .5° ─ 0 .5° 0.5 < & 1.8 &1.8 ─ & 2.3 &2.3 ─ & 3.0 & 3.0 ─ & 4.6 & 4.6 ─ & 9.1 > & 9.1 < & 4.6 & 4.6 ─ & 9.1 > & 9.1 0.75 < & 2.7 &2.7 ─ & 3.4 &3.4 ─ & 4.6 & 4.6 ─ & 6.8 &6. 8 ─ & 13.7 > & 13.7 < & 6.8 &6. 8 ─ & 13.7 > & 13.7 1 < & 3.6 &3.6 ─ & 4.6 &4.6 ─ & 6.1 & 6.1 ─ & 9.1 & 9.1 ─ & 18.2 > & 18.2 < & 9.1 & 9.1 ─ & 18.2 > & 18.2 1.25 < & 4.5 &4.5 ─ & 5.7 &5.7 ─ & 7.6 & 7.6 ─ & 11.4 & 11.4 ─ & 22.8 > & 22.8 < & 11.4 & 11.4 ─ & 22.8 > & 22.8 1.5 < & 5.5 &5.5 ─ & 6.8 &6.8 ─ & 9.1 & 9.1 ─ & 13.7 & 13.7 ─ & 27.4 > & 27.4 < & 13.7 & 13.7 ─ & 27.4 > & 27.4 1.75 < & 6.4 &6.4 ─ & 8.0 &8.0 ─ &10.6 &10.6 ─ & 16.0 & 16.0 ─ & 31.9 > & 31.9 < & 16.0 & 16.0 ─ & 31.9 > & 31.9 2 < & 7.3 &7.3 ─ & 9.1 &9.1 ─ &12.1 &12.1 ─ & 18.2 & 18.2 ─ & 36.5 > & 36.5 < & 18.2 & 18.2 ─ & 36.5 > & 36.5 2.5 < & 9.1 & 9.1 ─ &11.4 &11.4 ─ &15.2 &15.2 ─ & 22.8 & 22.8 ─ & 45.6 > & 45.6 < & 22.8 & 22.8 ─ & 45.6 > & 45.6 3 < & 10.9 &10.9 ─ &13.7 &13.7 ─ &18.2 &18.2 ─ & 27.3 & 27.3 ─ & 54.7 > & 54.7 < & 27.3 & 27.3 ─ & 54.7 > & 54.7 3.5 < & 12.7 & 12.7 ─ &15.9 & 15.9 ─ &21.3 &21.3 ─ & 31.9 & 31.9 ─ & 63.8 > & 63.8 < & 31.9 & 31.9 ─ & 63.8 > & 63.8 4 < & 14.6 & 14.6 ─ &18.2 & 18.2 ─ &24.3 &24.3 ─ & 36.5 & 36.5 ─ & 72.9 > & 72.9 < & 36.5 & 36.5 ─ & 72.9 > & 72.9 4.5 < & 16.4 & 16.4 ─ &20.5 & 20.5 ─ &27.3 &27.3 ─ & 41.0 & 41.0 ─ & 82.1 > & 82.1 < & 41.0 & 41.0 ─ & 82.1 > & 82.1 5 < & 18.2 & 18.2 ─ &22.8 & 22.8 ─ &30.4 &30.4 ─ & 45.6 & 45.6 ─ & 91.2 > & 91.2 < & 45.6 & 45.6 ─ & 91.2 > & 91.2 G012 * Back turning in the case of left hand threads.