Page 6 - E-Modul Teknik Pemesinan Bubut 1_2022
P. 6
1. Keras ....................................................................................................................................... 42
2. Ulet .......................................................................................................................................... 42
3. Tahan Panas ......................................................................................................................... 42
4. Tahan Aus ............................................................................................................................. 43
B. Proses pembuatan pahat bubut ........................................................... 43
1. Proses mixing ....................................................................................................................... 43
2. Proses forming ...................................................................................................................... 43
3. Proses manufakture ........................................................................................................... 43
4. Proses finishing .................................................................................................................... 43
C. Macam-macam pahat bubut ................................................................ 44
1. Baja karbon .......................................................................................................................... 44
2. Baja kecepatan tinggi/ high speed steel (HSS) ......................................................... 44
3. Paduan cor non ferro ......................................................................................................... 44
4. Karbida ................................................................................................................................... 45
5. Keramik .................................................................................................................................. 45
6. Cubic baron nitride (CBN) ............................................................................................... 46
7. Intan (diamond) ................................................................................................................... 46
D. Macam-macam pahat bubut menurut letak penyayatan benda kerja ... 46
1. Pahat bubut luar ................................................................................................................ 46
2. Pahat bubut dalam ............................................................................................................ 46
E. Macam-macam pahat bubut menurut keperluan pekerjaan ................. 47
1. Pahat kasar (roughing) ...................................................................................................... 47
2. Pahat finishing .................................................................................................................... 47
F. Macam-macam pahat bubut menurut letak sisi potong ....................... 47
1. Pahat kanan ......................................................................................................................... 47
2. Pahat kiri ............................................................................................................................... 47
G. Macam-macam bubut menurut fungsinya ........................................... 48
1. Pahat rata .............................................................................................................................. 48
2. Pahat sisi/ muka ................................................................................................................ 48
3. Pahat potong (cut off) ......................................................................................................... 49
4. Pahat alur.............................................................................................................................. 50
5. Pahat chamfer ...................................................................................................................... 50
v
