Общий каталог Widia 2017 - страница 694
Навигация
Каталог Widia токарный инструмент 2017
Каталог Widia трохоидальное фрезерование
Каталог Widia техническое руководство по разверткам
Каталог Widia фрезы со сменными пластинами 2016
Каталог Widia достижения 2020- Table of Contents
- Turning
- Turning • ISO Inserts
- Turning • Tools for External Turning and Internal Boring
- Turning • Tools for External Turning and Internal Boring
- Turning • Tools for Small Hole Boring
- com E1Turning • Grooving and Cut-Off
- Turning • Threading
- Indexable Milling
- Indexable Milling • Face Mills
- Indexable Milling • Chamfer Mills
- Indexable Milling • 90° Shoulder Mills
- Indexable Milling • Helical Mills
- Indexable Milling • Slotting Mills
- Indexable Milling • Copy Mills
- Solid End Milling
- Solid End Milling • High-Performance Solid Carbide End Mills
- Solid End Milling • General Purpose Solid Carbide End Mills
- Solid End Milling • High-Performance High-Speed Steel (HSS-E/PM)
- Solid End Milling • Burs
- Holemaking
- Holemaking • High-Performance Solid Carbide Drills
- Holemaking • Modular Drills
- Holemaking • Indexable Drills
- Holemaking • Modular Drills
- Holemaking • Indexable Drills
- Holemaking • Hole Finishing
- Tapping
- Tapping Portfolio
- Index by Order Number
- Index by Catalogue Number
- Global Contacts
- Informational Icons Guide
- Material Overview • DIN
American Buttress (45° Clearance Flank Leading): NTB-B Inserts • PULL-type
Insert vs. Toolholder Orientation
chuck chuck external internal
anti-clockwise rotation anti anti-clockwise rotation NTB-2RB
NTB-3RB NTB-4RB feed insert NTB-2LB notch sealing
NTB-3LB 45° surface in
45° clearance 45° clearance fl ank of toolholder
NTB-4LB sealing
| fl ank of the | feed | the thread being the | insert | ||
| thread being | leading fl ank | notch | surface | ||
| the leading fl ank | NTB-2RB | in bar |
NTB-3RB NTB-2LB NTB-3LB NTB-4RB NTB-4LB
Internal Buttress External Buttress
45° clearance fl ank leading 45° clearance fl ank leading 45° clearance fl ank leading
Reference Dimensions Infeed Angle vs. Chip Load: 45° Clearance Flank Leading
“A” reference .010" infeed .010" infeed nose radius .007" .0052" .0039" chip load .0012" chip load chip load chip load D maximum depth with “B” style insert
15° infeed angle 0° infeed angle
NTB-B insert
| D | “A” reference | nose radius | pitch based on | ||||
| insert | (inch) | (inch) | (inch) | maximum radius | |||
| NTB-3B | .171 | .031 | .005–.004 | 8–16 TPI |
NOTE: For balanced chip load, a reverse 15° infeed angle is suggested.
Internal Threading Limitations
internal threading limitations internal threading limitations NTB-2B Buttress threading inserts NTB-3 and NTB-4B Buttress threading inserts
| TPI | nominal | minimum minor | TPI | nominal | minimum minor | ||
| thread size | diameter | thread size | diameter |
(inch) (inch)
| 8 | 1-3/4 | 1.600 | 4* | 2-7/8 | 2.575 |
| 10 | 1-5/8 | 1.505 | 5 | 2-3/4 | 2.510 |
| 12 | 1-1/2 | 1.400 | 6 | 2-3/8 | 2.175 |
| 16 | 1-1/4 | 1.175 | 8 | 2-1/8 | 1.975 |
| 20 | 1-1/16 | 1.002 | 10 | 1-7/8 | 1.755 |
| 12 | 1-5/8 | 1.525 | |||
| 16 | 1-1/2 | 1.407 | |||
| 20 | 1-7/16 | 1.378 |
*NTB-4B insert only.