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Hole Finishing

ROTAFLEX™ High-Performance Boring Systems

General Application Hints

• Identify your critical diameter (D).

• Identify the maximum distance cutting edge (L) to critical diameter.

Here are some examples:

Refer to this table for first investigation of application:

Type of Tooling

Twin Cutter Solid Tools

Twin Cutter Bridge Tools

Fine-Boring Heads with Boring Bar (FBHBB)

Fine-Boring Heads (FBH)

Fine-Boring Bridge Tools

Stable

<3,5 x D

Function of the tool is

expected without issues

within recommended

cutting data.

Unstable

3,5–6,5 x D

3,5–5,0 x D

Tests Necessary

>6,5 x D

>5,0 x D

Application may require

Machining test may

reduced feeds and/or speeds be required to identify

compared to stable conditions. cutting data.

Causes of and remedies for rough and ne boring problems

It is generally assumed that the tools have been properly mounted as per the technical recommendations in this catalogue.

Problem

Cause

Possible Remedy

Vibration tendency

1. Overhang

2. Choice of insert

3. Cutting data

• Adjust L/D ratio

• Select 90° lead angle on rough boring tools

• Select inserts with positive geometry

• Select inserts with smaller corner radius

• Reduce depth of cut

• Increase feed

Slight chatter marks on surface

1. Choice of insert

2. Cutting data

3. Machining environment

• Select 90° lead angle

• Select ground inserts with small edge preparation

• Select inserts with smaller corner radius

• Increase feed

• Increase coolant

Conical bores

1. Choice of insert

2. Cutting data

3. Machining environment

• Select a more wear-resistant insert grade

• Increase cutting speed

• Check whether all screws have been tightened

to recommended torque

W70

zakaz@widiahanita.ru

WIDIA - Полный каталог инструмента - 2017