Sandvik’s tool system for the re-turning of railway wheels consists of holders with replaceable tip seats for tangential inserts. This type of insert withstands the stresses which large cutting depths at high temperatures produce.
When choosing tools and inserts, it is important to bear in mind the type of wheel to be turned, the condition of the predominant part of the worn wheel, as well as the machine power which is available.
It is desirable to be able to choose as large a cutting depth as possible in order to achieve short machining times. This is not always possible.
In certain cases the profile can be turned in one single pass. With other machines it may be necessary to divide the machining into several stages in order to produce the right profile and diameter dimensions for the wheel.
Dividing the machining into several stages is common with underfloor lathes where friction force is used to drive the wheel.
Depending on the type of machining, there are various options of insert geometries and grades.
New grade GC4225
This grade of the new insert generation is the first choice from roughing to finishing, whether small part machining, bar peeling, or parting and grooving, it even makes light of heavy turning.
 Read more about the new insert generation | |
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