LMT FETTE T18F - Knurling and Burnishing

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Operating Manual

Tangential Rolling System T18F - T27F

www.lmt-fette.com

the start of the thread. Insert the setting gauge (ET-32) into the rolling head holder

(ET-31) in such a way that the shoulder surface is against the side in the rolling

head holder at which the short arm side of the tangential rolling head

is usually

located. The height dimension H of the setting gauge ensures that the tip of the

setting gauge is located where the reference plane of the thread roll will be later. It

is now possible to move the rolling head as described in Chapter 6.3 towards the

workpiece and set the rolling position via the F-gauge.

7.2 Knurling and burnishing

Tangential rolling heads can also be used to produce knurling and burnishing on work-

pieces. Several points need to be considered:

1. For knurling or burnishing a special tangential rolling head is required:

This can either be ordered as a complete tangential rolling head with a knurling

design or modiﬁed from an existing tangential rolling head.

a) To order a tangential rolling head with a knurling design, use the following ID

numbers:

Tangential rolling head ID number

T18FR 9167474

T27FR 9180963

b) To modify an existing tangential rolling head, proceed as follows (see also Figure

21):

■ Order the spacer 38 and bushing 39 – the parts are also referred to as a kit for

knurling and burnishing – which are suitable for your rolling head in duplicate:

Tangential rolling head

ID number

Spacer 38 Bushing 39

T18FR 2173977 9167408

T27FR 2173979 9180993

■ Disassemble the pinion (ET-8), the gears (ET-10), the bushings (ET-13), and

also the bearing bushings (ET-7).

■ Replace the bushing (ET-13) with the bushing (39)

■ When inserting the knurling/burnishing roll (ET-18) slide the spacer (38) onto

the roll axis (ET-3). This replaces the missing driving grooves on the knurling/

burnishing rolls.

The prerequisite for this is that a standard roll is used and that the rolling head is aligned in an

axial direction to the workpiece.

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