Heat-resistant steel casting

The manufacture of exhaust manifolds and turbo housings on a machining centre presents particular challenges for tools and machines alike.

The machining process requires the highest levels of precision and wear resistance. The crucial machining operations for this process are: Milling the exhaust manifold surfaces and the relief grooves, counterboring the main bore and V-flange machining. In order to ensure a long tool life and stable processes, the focus is on designing the tools for maximum stability.

Rough milling of the exhaust manifold surface

Our solution:
Walter heptagon milling cutter with a double-sided indexable insert

14 cutting edges
The latest Tiger·tec® Gold cutting tool material
Shim to protect the insert seat
Suitable for machining chrome-nickel steels

Benefits for you:
Long tool life and high feed rates for chrome-nickel steels.

Machining the side of the turbine

Our solution:
Walter combination tool for drilling

Drilling the main bore
Simultaneously: Forming the V-flange
Small number of tools in the magazine

Benefits for you:
The main bore can be machined with maximum productivity and high process reliability thanks to the stable process and low machining times.

V-flange: Interpolation turning

Our solution:
Walter interpolation tool

Two effective cutting edges for roughing operations
Cost-optimised indexable insert with 3 cutting edges
Cartridge system for double spindle machines

Benefits for you:
Low cutting material costs thanks to high tool life – while also providing short machining times.

Finishing V-flange and inner contours

Our solution:
Walter CaptoTM turning tool with two indexable inserts

Finish machining of V-flange and inner contours with just one tool
Stable insert on chrome-nickel steels, adapted indexable insert geometry

Benefits for you:
Long tool lives and high process reliability thanks to exceptional tool and indexable insert stability.

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Turbo housing with exhaust manifold