Bilz SCK-HSK optimized synchro chuckClick image to enlargeVolkswagon's Salzgitter, Germany plant had a problem with its Minimum Quantity Lubrication and dry processing operations.

More than 50 per cent of the production at the plant involves MQL and dry processing because they are efficient processes and environmentally friendly. When the company discovered an aerosol leakage problem in its tapping operations because of insufficiently sealed tapping chucks, it turned to Bilz to help them come up with a better clamping tool soltuion to eliminate the problem.

In cooperation with VW Salzgitter, Bilz developed an optimized synchro chuck, the SCK for MQL applications.

The optimization of SCK means that the 100 per cent feed of the aerosol to the relevant points of the tool is guaranteed. The advantages of this optimal usage of the aerosol up to the tip of the tool are clear: increased tool life, lower unit costs (CPU), and higher productivity of the machine due to fewer tool changes, claims Bilz.

The optimal leak proofing of the SCK was proved during trials at VW Salzgitter. The optimized SCK and the clamping chuck used up to that point were clamping onto a double- spindle machining centre in direct comparison to one another. Components made of AISi9 were machined using a thread former from LTM-Fette at 6 bar pressure and maximum cutting speeds.

Jürgen Binnebesel, tool technologist in Tool Management VW Salzgitter says, "the difference can be seen with the naked eye, whereas a fine mist of aerosol droplets forms around the old chuck, the optimized SCK runs flawlessly. No mist or moisture in the tool shank. The aerosol exits 100 per cent where it should—at the tool."

Uwe Leister, product manager at BILZ, says "the SCK as a combination solution is generally suitable for machines with MQL 1-channel, MQL 2-channel, IC up to 50 bar coolant pressure, but is also ideal for use in dry processing. The SCK can also be used on machines with manual tool change. The chucks are available immediately in sizes HSK32A, HSK40A, HSK50A, HSK63A, and HSK80A, also the various coolant tube versions required for the different systems. It is also possible to supply the SCK with a green ring as an alternative to the blue design if the customer requires, clearly indicating that it is a tool capable of MQL."

Another new development is the length adjustment on both sides integrated into the collet. In the future, adjustment can be carried out quickly and easily either from the collet or from the shank side. This means that adjustment is carried out directly—there is no longer any need for time consuming corrections.

The optimized construction guarantees process security, even with high idling speeds up to 115,000 rpm. Solid mounting components and dimensionally stable, almost wear-free elastomers within the compact construction mean that a constantly high cutting quality, improved tool life, and a simplified fitting procedure are achieved.

At the product presentation to the team of experts under the management of Hans-Otto Wenhake, manager for operative tool management at VW Salzgitter, another BILZ product took centre stage beside the SCK: the BZ collet with integrated length adjustment.

The greatest strengths of the BZ line is the slim construction: optimal in narrow working conditions with interference contours, also in the positive fitting of the BZ collet in the housing of the SCK, removing the risk of uncontrolled slipping of the collet during operation. In addition to this, the BZ collet plays a significant role in the 100 per cent leak proofing of the SCK and therefore complements it.

"We are always looking for the best technical solutions for our production. The SCK supports this target and we support the SCK," says Hans-Otto Wenhake.

Bilz 

Portable air plasma, internal compressor in one

Powermax30 Air is a new portable air plasma system and internal compressor in one from Hypertherm.

Chip Control: A Readers’ Digest Version

by Staff writer

Recommendations on chip management from the experts

New generation automatic lathe

INDEX's new generation ABC machine is designed for turning simple to moderately complex parts in cycle times up to 15 per cent faster than previous generation machines, with rapid spindle acceleration (8 g), shorter spindle ramp-up times, higher rapid traverse rates and quick chip-to-chip times.

Extended consumables for cutting, gouging in hard to reach areas

Hypertherm has launched new, extended consumables for its Powermax30, Powermax 30XP and Powermax45 plasma systems. The HyAccess consumables extend 76.2 mm (3 in.) longer than standard consumables for better visibility and accessibility when cutting or gouging in hard to reach areas or confined spaces.

Indexable insert cutter

The new CoroMill 331 indexable insert cutter from Sandvik Coromant offers precision groove milling in an easy to use format.

Low cost, high speed machining

SpinJet is a new range of coolant driven, high speed spindles from Iscar designed for use with small diameter tools on low rpm machine tools.

Nd:YAG or fiber laser for micro welding?

Choosing the best option for your application

By Geoff Shannon, Amada Miyachi America

Four lasers can be used for micro welding: pulsed neodymium-doped yttrium aluminum garnet (Nd:YAG), continuous wave (CW) fiber, quasi continuous wave (QCW) fiber, and nanosecond fiber. Each laser type offers unique features that work best for specific applications. Here is a comparison of the pulsed Nd:YAG laser with the three fiber laser options, and a discussion of why and when one might be chosen over the other. In some cases, several options may work; in that case, cost of ownership and serviceability can tip the scales.

Fittings for systems in harsh welding environments

Eisele Corp.'s LiquidLine fittings are designed for use in closed cooling systems in harsh welding environments.

500 ipm cutting speeds with new abrasive waterjet

Koike Aronson has developed a new abrasive waterjet cutting system with cutting speeds up to 12,700 mm/min (500 ipm) with standard cutting areas up to 1,829 x 3,658 mm (72 x 144 in.).

Weld inspection with Class 2 laser

Xiris Automation Inc.’s WI-2000 weld inspection system for tube and pipe manufacturing now incorporates a Class 2 laser.

Business system module added to job management software

SigmaTEK Systems has added its Business Systems Suite to its SigmaNEST Version 20 product portfolio.

IMTS Spotlight: Shoulder milling solution

Exhibitor: Seco Tools  Booth: W-1564

The Square T4-08 is a new shoulder mill with pocket seats and multi-edge inserts for cutting stability and for clean 90° walls.

New Flap Wheels for abrasive grinding and finishing

Saint-Gobain Abrasives has recently introduced Norton Blaze R920 Ceramic Alumina Flap Wheels which are designed to deliver a smooth finish with a fast rate of cut. The wheels are ideal for aggressive grinding and precision finishing, blending, deburring, cleaning, and producing uniform finishes on tough parts that are manufactured in hard-to-grind materials including super alloys, stainless steel, and cobalt.

Higher-power models added to fibre laser welder line

Four new higher-power models have been added to the LF Series family of fibre laser welders from Amada Miyachi America.

Integrated Z-axis boosts laser blanking system speeds

LaserCoil Technologies has increased the cutting speed and power of its laser blanking systems.

Stay In Touch

twitter facebook linkedIn