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  PE-TRA Solutions for Automobile Component Manufacturers
PETRA Machines once again proved its Bandsaw machine’s capability by successfully cutting a very challenging material in a very efficient manner.

This material is a high temperature alloy used to manufacture turbocharger nozzle ring. A nozzle ring is located in exhaust-gas turbine of a turbocharger and is subjected to severe stresses due to continuously varying operating conditions. This is a corrosion resistance material (Chromium and Cobalt is 34.5% by weight), as the exhaust gases are highly corrosive.

Due to its contents (Cr, Co, Si), it is one of the most difficult material to cut economically. Hence, at PETRA, we undertook this challenging project to establish its optimum cutting parameters.
For these trials, we used the material (which is invariably used by nozzle ring manufacturers) in the form of tubes as well as rounds. We cut it by using a Carbide teeth bandsaw blade. After establishing the various parameters, we arrived at conclusive data, which shows, how efficiently, the PETRA bandsaw cut this challenging material. We achieved a consistence performance of cutting this material and arrived at an average tool life of 63000 sq.cm with optimum cutting parameters.
There is one more tough material, a stainless steel with composition of Cr-24 to 26%, Ni-19 to 20% and Si is 1.5%, which PETRA Bandsaw cuts very efficiently and with consistency. A batch of solid round of 76mm diameter, we cut it with Carbide blade and achieved an average tool life of 68000 sq cm.

PETRA band saw’s unique force and feed feature helps in a successful cutting of this material, as with this arrangement , blade never gets over loaded and automatically adjust the feed according to resistance to the blade teeth and the set load.