Roughing and finishing turbine housings is particularly challenging in the case of passenger cars with spark-ignition engines. By Lim Gan Shu, marketing manager, Walter AG Singapore.

When perfect volume cuts are required in wet or dry cutting situations, the solution lies with a high-performance automatic circular saw.

Thanks to references from the steel market, circular saw manufacturer Behringer Eisele from Weilheim/Teck succeeded in submitting the winning bid to supply and install an HCS 160 Multifluid high-performance circular machine to an international market leader in quenched and tempered steel.

The company’s most important customers are steel trading corporations worldwide, in particular in Europe. “This international tender for a sawing system was decided in our favour because Behringer Eisele scored highest when it came to the key factors quality, technology and price”, explains Manfred Grüninger, head of sales at Behringer Eisele, Weilheim/Teck, Germany.

In the magazine of the high-performance circular saw HCS 160 Multifluid, a single bar with a diameter range of 20 – 160 mm is separated from the bundle and cut. The bar with lengths of up to 13 m is cut to customer’s order to lengths between four and 12 m.

Variability & Adjustability

Their customer was able to cut 10 tons of raw materials in bundles of 20 with a starting length of 12.5 m and a diameter of 80 mm made of 42CroMo4. It took them less than 40 minutes to create two bundles with a vending length of 6 m.

The process included both, a front and a rear cut, as well as the dividing cut in the middle. The HCS 160 Multifluid was able to keep up pace with production delivering precision, supplying perfect volume cuts. Whether for wet or dry cutting, the carbide circular saw was able to offer both variability and adjustability.

In addition, the HCS 160 Multifluid can be adapted to suite the processing task and requirements of the sawing cut: From workpiece cooling using emulsion, through to the use of different micro-spraying devices to active saw blade cooling during dry cutting.

It is also designed to handle high-alloyed heat-resistant steel qualities over 1200 N/mm2. While the standard speed range of 20 to 250 rpm allows it to cover most conceivable sawing assignments even using standard equipment.

Flexibility & Support

The machine provides additional support during both wet and dry cutting: A chip conveyor with integrated coolant pump, for instance, ensures rapid disposal of produced chips. During wet cutting, a trough integrated into the machine frame captures the cooling lubricant emulsion.

“To improve vibration damping, our engineers opted to add greater rigidity to the machine concept”, explains Manfred Grüninger. The result is an increase in service life and an improved cutting surface for precise, rapid cuts in both wet and dry conditions.

As a fully automatic high-performance circular saw, the HCS 160 MF is designed to ensure production-oriented and flexible integration into the downstream production process.

“This is why we maintain a lively dialogue with the customer to ensure that the system is performing at all times”, says Grüninger. He regularly calls in to enquire how things are going on site. After all, process reliability is crucial when it comes to volume sawing.