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


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