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ISCAR ‘Automotive-ated’

to Provide Advanced

Tooling Solutions

Constantly changing factors such as unstable up to 1100°C in gasoline powered units. As it is
oil prices, ever more demanding environmental crucial that these components function efficiently
protection legislations and the evolution of more at such high temperatures, turbine housings are
efficient technologies ensures a continually manufactured from austenitic, heat-resistant cast
changing global automotive market place. steels, which have relatively high-creep strength,
These factors also increase the ongoing good thermal stability and excellent castability.
competition between car makers and OEMs This material solution would be perfect if turbine
and dictate today's automotive industry housings could be machined easily, however
manufacturing trends. many turbocharger manufacturers face problems
when using standard tools for machining turbine
This article focuses on one of these trends – ICE housings. Standard carbide inserts are often only
Optimization (Internal Combustion Engine) / able to machine a few parts before failing. In many
Engine Downsizing Revolution cases, these tool breakage problems can lead to
crash downs and machine and other expensive
Today's engines are becoming smaller, lighter, equipment damages.
more economical and environment-friendly,
increasingly refined and quieter, whilst delivering
25-30% more power and torque than previous
generation power units.

The now ubiquitous turbocharger plays a key
role in ICE Optimization. A turbocharger uses
the engine’s previously wasted exhaust gases to
rotate a turbine that activates an air compressor.
When propelled into the engine’s combustion
chambers, the resulting air/fuel mixture
significantly increases the engine's performance,
and vastly improves its efficiency. An unwelcome
consequence of the use of a turbocharger is that
the heat generated increases. Turbine housing
temperatures to 900°C in diesel engines, and

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