Page 7 - E-Modul Teknik Pemesinan Bubut 1_2022
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6. Pahat ulir ............................................................................................................................... 50

               H. Geometris pahat bubut ....................................................................... 51

               1. Pahat bubut rata ................................................................................................................ 51
               2. Pahat bubut muka/ facing .............................................................................................. 51

               3. Pahat bubut ulir segitiga ................................................................................................. 52

               4. Pahat bubut ulir segi empat ........................................................................................... 53
               5. Pahat bubut potong ........................................................................................................... 54

               I. Teknik pemasangan pahat bubut ......................................................... 54

               1. Cara memasang pahat bubut yang baik dan benar ............................................... 54

               2. Hal-hal yang perlu diperhatikan ................................................................................... 54
               3. Kesalahan pemasangan pahat bubut .......................................................................... 56

               J. Kerusakan pahat bubut ....................................................................... 59

               1. Radius pada ujung ............................................................................................................. 59

               2. Keausan pada bidang bebas muka .............................................................................. 60
               3. Keausan pada bidang potong ......................................................................................... 60

               4. Built up cutting edges ........................................................................................................ 61

               5. Keretakan pada pahat bubut sisipan/ tip carbide.................................................. 61
               6. Tip carbide pecah ............................................................................................................... 62

               7. Tip carbide lepas ................................................................................................................. 62

               K. Alat potong mesin bubut (selain pahat bubut) ..................................... 63
               1. Bor senter/ Centre Drill .................................................................................................... 63

               2. Konter bor/ Counter Bor ................................................................................................... 65

               3. Kontersing/ Countersink ................................................................................................. 65
               4. Mata bor................................................................................................................................. 69

               5. Rimer/ Reamer .................................................................................................................... 72

               6. Kartel (knurling) ................................................................................................................... 75
               RANGKUMAN .......................................................................................... 80

               LATIHAN SOAL ....................................................................................... 81

               DAFTAR PUSTAKA .................................................................................. 82








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