Sandvik-coromant Threading Manuale Utente Pagina 80
- Pagina / 118
- Indice
- RISOLUZIONE PROBLEMI
- SEGNALIBRI
- Contents 1
- Introduction 2
- 1. Basics in threads 3
- Pitch diameter, d 4
- Helix angle 4
- Thread designations 5
- Tolerance positions 6
- ¼” 20UNC – 2A 7
- ISO - uni ed (UN): 7
- Types of UN thread 7
- ¼” – Major thread diameter 7
- Whitworth pipe threads: 8
- 2. Applications 9
- Thread turning Thread milling 10
- Thread turning 10
- Thread milling 10
- Insert types 11
- Flexibility 12
- Productivity 13
- First choice 15
- Insert geometries 16
- MC CMC Geometries 16
- ISO No. No 16
- Modi ed ank infeed 17
- Radial infeed 18
- Infeed value recommendations 21
- Tool holder selection 22
- External thread turning 23
- Internal thread turning 24
- External Internal 25
- A negative shim must be used 25
- Thread turning methods 25
- Working away from the chuck 25
- Insert clearance angles 26
- = the angle of insert 27
- Modi ed bars for small holes 30
- Multi-start threads 31
- NPT/NPTF UN/MM 32
- Insert tool life 33
- Threading large pro les 33
- Thread deburring 34
- Tooling inventory 36
- Tool breakage 36
- Chip control 36
- Cutting force 37
- Thread quality 37
- Choice of cutting diameter 39
- Tool path 40
- Down milling and up milling 41
- Entrance into cut – roll in 41
- Feed per tooth 42
- Cutting data considerations 43
- Wet or dry machining 43
- Internal thread 44
- External thread 44
- 3. Products 46
- Insert sizes 48
- Geometries 48
- The interface: holder - shim 49
- The interface: shim - insert 49
- Type of insert 50
- Assortment - CoroThread® 266 50
- . Products - thread turnin 51
- 3. Products - thread turnin 54
- – external threading 55
- -C -C-N -N-A -A 56
- Assortment 60
- CoroTurn® SL cutting heads – 63
- Extended offer 64
- Thread Milling 65
- Single-point threading 66
- CoroMill® 327 67
- Assortment - CoroMill® 327 68
- Handling 68
- CoroMill® 328 69
- Easy programming 70
- Cutting data and programming 71
- Assortment - CoroMill® Plura 71
- Grade information 72
- GC1125 73
- GC1020 73
- GC4125 74
- CB7015 74
- GC1105 75
- 4. Troubleshooting 76
- Insert breakage 77
- Built-up edge (BUE) 77
- Abnormal ank wear 78
- Vibration 78
- Poor surface nish 79
- Poor chip control 79
- Shallow pro le 79
- Excessive edge pressure 80
- Incorrect thread pro le 80
- Thermal cracks 82
- Crater wear 82
- Plastic deformation 82
- Flank wear 83
- Re-cutting of chips 84
- Notch wear 84
- Machine inef ciency 85
- Conical threads 85
- 5. Technical reference 86
- CoroTurn® XS 87
- CoroCut® MB 87
- CoroCut® XS 87
- 5. Technical re 88
- Programming 92
- CoroMill® Plura 94
- ISO Metric (MM), external 96
- ISO Metric (MM), internal 97
- ISO inch (UN), external 98
- ISO inch (UN), internal 99
- ACME (AC), external 102
- ACME (AC), internal 103
- MJ, external 106
- UNJ, external 106
- Unit Radial infeed per pass 107
- Multi-point 108
- CoroMill 327, metric 112
- CoroMill 327, inch 112
- 113
- Formulas 114
- Radial clearance 116
- Flank clearance 116
- Thread milling formulas 117
- Internal thread milling 117
- External thread milling 117
- Inch/mm conversion table 118
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