Reaming Tools Catalog - Komet

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DIHART ® Special Tools
Special Solutions and Multi-step Tools –
More Possibilities, Lower Machining Costs
The development of customers specific solutions represents
a major area of experience for DIHART ® .
It is often im possible to carry out machining tasks with
standard tools because of the demands for form, tolerance
or quality that require special process analysis and tool
development work.
The form on page 108 of this catalog can be used at any
time to inquire about and order special tools.
References to applications can be found in our application
examples.
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BENEFITS for you:
Application specific design
Reduction of cycle time
Technical advice by experienced DIHART ® engineers
Combining several machining operations
Highest efficiency, productivity and cost reduction
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Special Applications:
Machining Bearing
Bores for Camshafts
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Example:
Finish machining operation for
camshaft bearing for cylinder heads in
Ck AlSi9Cu3 for car engines.
The task:
To simplify the process on transfer lines
or machining centers.
The solution:
Using application specific tooling,
machining the cylinder heads on
transfer lines is reduced to one station.
On machining centers, a short pilot
tool, fitted with PCD blades is initially
used to pre-machine the bores for the
first step. The finishing tool (also with
PCD blades), which matches the length
of the engine, then reams all the bores
to size: 1.025" (26.045 mm) H7.
The concept has now become well
established in engine and vehicle
manufacturing.
The cutting data is as follows:
vc = 721 ft/min (220 m/min);
f = 42.5 in/min (1080 mm/min)
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Patent applied for inside and outside Germany