Токарный резьбонарезной инструмент Mitsubishi THREADING Державки и пластины SELECTING A SHIM FOR THE MMT SERIES FLANK ANGLE AND LEAD ANGLE Lead a

Токарный резьбонарезной инструмент Mitsubishi THREADING Державки и пластины SELECTING A SHIM FOR THE MMT SERIES FLANK ANGLE AND LEAD ANGLE Lead a

Токарный резьбонарезной инструмент Mitsubishi THREADING Державки и пластины SELECTING A SHIM FOR THE MMT SERIES FLANK ANGLE AND LEAD ANGLE Lead angle (a) 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 (/Ji, 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. SHIM REFERENCE TABLE (Токарный резьбонарезной инструмент Mitsubishi THREADING Державки и пластины DIAMETER) (Thread angle 60° and 55°) Lead Angle (a' \ Lead \Angle PitcfK (mm) \ Right Hand Thread (mm) Left Hand Thread (mm) Threading impossible 4.5° 3.5° 2.5° 1.5° 0.5° Threading impossible -1.5° I 0 01 O 0.5 <01.7 01.7- 02.3 02.3- 03.0 03.0- 04.6 04.6- 09.1 >09.1 <03.6 03.6- 09.1 >09.1 0.75 <02.5 02.5- 03.4 03.4- 04.6 04.6- 06.8 06.8-013.7 >013.7 <05.5 05.5-013.7 >013.7 1 <03.3 03.3- 04.6 04.6- 06.1 06.1 - 09.1 09.1 -018.2 >018.2 <07.3 07.3-018.2 >018.2 1.25 <04.1 04.1 - 05.7 05.7- 07.6 07.6-011.4 011.4 - 022.8 >022.8 <09.1 09.1 -022.8 >022.8 1.5 <05.0 05.0 06.8 06.8- 09.1 09.1 -013.7 013.7-027.4 >027.4 <010.9 010.9 - 027.4 >027.4 1.75 <05.8 05.8- 08.0 08.0-010.6 010.6-016.0 016.0-031.9 >031.9 <012.8 012.8-031.9 >031.9 2 <06.6 06.6- 09.1 09.1 -012.1 012.1 -018.2 018.2 - 036.5 >036.5 <014.6 014.6 - 036.5 >036.5 2.5 <08.3 08.3-011.4 011.4-015.2 015.2 - 022.8 022.8 - 045.6 >045.6 <018.2 018.2-045.6 >045.6 3 <09.9 09.9-013.7 013.7-018.2 018.2-027.3 027.3-054.7 >054.7 <021.9 021.9 - 054.7 >054.7 3.5 <011.6 011.6-015.9 015.9-021.3 021.3-031.9 031.9-063.8 >063.8 <025.5 025.5 - 063.8 >063.8 4 <013.2 013.2-018.2 018.2 - 024.3 024.3-036.5 036.5 - 072.9 >072.9 <029.2 029.2-072.9 >072.9 4.5 <014.9 014.9 - 020.5 020.5 - 027.3 027.3 - 041.0 041.0-082.1 >082.1 <032.8 032.8 - 082.1 >082.1 5 <016.5 016.5 - 022.8 022.8 - 030.4 030.4 - 045.6 045.6 - 091.2 >091.2 <036.5 036.5 - 091.2 >091.2 SHIM REFERENCE GRAPH (Thread angle 60° Right Hand Thread (Note) Back turning in the case of left hand threads. and 55°) Left Hand Thread Threading Diameter (mm) Threading Diameter (mm) (Note) When a thread lead angle < the tool flank angle, change the shim to prevent side interference with the insert. (Refer to the table below for the calculation of thread lead angle and tool flank angle.) SHI VI REFERENCE TABLE (Токарный резьбонарезной инструмент Mitsubishi THREADING Державки и пластины DIAMETER) (Thread angle 30° and 29°) \ Lead \ Angle PitOTV. (mm) \ Right Hand Thread (mm) Left Hand Thread (mm) Threading impossible 4.5° 3.5° 2.5° 1.5° 0.5° Threading impossible -1.5° -0.5° 0.5 <01.8 01.8- 02.3 02.3- 03.0 03.0- 04.6 04.6- 09.1 >09.1 <04.6 04.6- 09.1 >09.1 0.75 <02.7 02.7- 03.4 03.4- 04.6 04.6- 06.8 06.8-013.7 £013.7 06.8 06.8-013.7 £013.7 1 <03.6 03.6- 04.6 04.6- 06.1 06.1 - 09.1 09.1 -018.2 >018.2 <09.1 09.1 -018.2 >018.2 1.25 <04.5 04.5- 05.7 05.7- 07.6 07.6-011.4 011.4 - 022.8 >022.8 <011.4 011.4 - 022.8 >022.8 1.5 <05.5 05.5- 06.8 06.8- 09.1 09.1 -013.7 013.7-027.4 >027.4 <013.7 013.7 - 027.4 >027.4 1.75 <06.4 06.4- 08.0 08.0-010.6 010.6-016.0 016.0-031.9 >031.9 <016.0 016.0-031.9 >031.9 2 <07.3 07.3- 09.1 09.1 -012.1 012.1 -018.2 018.2 - 036.5 >036.5 <018.2 018.2 - 036.5 >036.5 2.5 <09.1 09.1 -011.4 011.4-015.2 015.2 - 022.8 022.8 - 045.6 >045.6 <022.8 022.8 - 045.6 >045.6 3 <010.9 010.9-013.7 013.7-018.2 018.2-027.3 027.3-054.7 >054.7 <027.3 027.3 - 054.7 >054.7 3.5 <012.7 012.7-015.9 015.9-021.3 021.3-031.9 031.9-063.8 >063.8 <031.9 031.9 - 063.8 >063.8 4 <014.6 014.6-018.2 018.2 - 024.3 024.3 - 036.5 036.5 - 072.9 >072.9 <036.5 036.5-072.9 >072.9 4.5 <016.4 016.4 - 020.5 020.5-027.3 027.3 - 041.0 041.0-082.1 >082.1 <041.0 041.0-082.1 >082.1 5 <018.2 018.2 - 022.8 022.8 - 030.4 030.4 045.6 045.6-091.2 >091.2 <045.6 045.6-091.2 >091.2 596 i Note) Back turning in the case of left hand threads. Mitsubishi Materials