Общий каталог Widia 2017 - страница 683
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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
General Machining Guidelines
Radial Modifi ed fl ank Alternating fl ank Reversed modifi ed fl ank
modifi ed fl ank modifi ed fl ank alternating fl ank modifi ed fl ank
15º–29º 30' 15º–29º 30' angle of angle of infeed infeed angle of infeed
Advantage — Advantage — Advantage — Advantage —
- Cutting on both sides of the thread
- Tool cuts both sides of thread form,
- Increased tool life because both
- Tool cuts both sides of thread form,
| form places all of the cutting edge | so it is protected from chipping | edges are used equally. | so it is protected from chipping | |
| in the cut and protects edge from | similar to 0° infeed. Channel-type | similar to 0° infeed. Channel-type | ||
| chipping. | chip develops, but uneven chip | chip develops, but uneven chip | ||
| • Even wear on the insert. | thickness helps remove the chip | NOTE: Some machine tools may | thickness helps remove the chip | |
| similar to fl ank infeed. | require special programming | similar to fl ank infeed. |
- This is the preferred method, techniques to achieve this
- This is the preferred method,
| especially when used with a chip | method of infeed. | especially when used with a chip |
| control insert. | control insert. |
- Combined radial and/or alternating
- Combined radial and/or alternating
fl ank infeed. fl ank infeed.
- Results in good tool life, with wear
- Results in good tool life, with wear
evenly distributed over both fl anks. evenly distributed over both fl anks.
- As chip fl ow is the reversed feed direction, it is an excellent choice for internal threading.
Disadvantage — Disadvantage — Disadvantage — Disadvantage —
- Tool develops a channel chip that
- Similar disadvantages as with 0°
- Diffi cult to cut on conventional
- Programming needs to be done
may be diffi cult to handle. infeed, although reduced somewhat machinery. line by line.
- Tip chipping occurs when cutting in magnitude as cutting forces are high-tensile materials. better equalised and chip fl ow is
- Bur condition is increased. much less of a problem.
- Entire cutting edge is engaged at fi nish of thread, causing increased tendency to chatter.