Features
- Higher speed than beta-gamma coated wire
- Designed for highspeed cutting
- 20% faster than gamma phase wires
- 40% faster than brass wires
- Highest level of energy efficiency
Our blacspark - the successor of gamma phase wire
blac technology - new products exclusively for the US market
The blac layer is significantly different than typical Gamma class wires. The blac technology is an innovative reconstituted structure that combines a microstructured surface with tiny aggregates of semiconductor materials, which are uniformly distributed and embedded into the surface. As a result, more energy is transferred into the workpiece with each spark, thus increases the amount of material removed with each spark. Combined with the consistency of particle distribution the coating promotes better stability and a higher percentage of cutting pulses to be directed to the workpiece. The result is a faster cutting speed.
This consistency can be seen by looking at a 500x view of the blac technology structure compared to a view of a typical Gamma coating. It is visually apparent that the consistency of the coating is much greater than that of the Gamma coated wire. Click to zoom.
blac technology 500x
Gamma coating 500x
blac technology wire will be launched in two different versions: blacspark H, which is a high tensile strength wire recommended for up to four cuts, will initially be offered in diameters of 0.20 / 0.25 / 0.30 mm. blacspark S is a soft version designed for taper cutting and will be available in early summer. It is also recommended for four cuts and will be initially offered in diameters of 0.25 and 0.30 mm.
Both products are available with DIN125, DIN160, DIN200, DIN250, P5, P10 and P15 spool types. Aside from differences in tensile strength, both blacspark H and blacspark S will support the highest possible level of energy efficiency.
Core material
blacspark H technical data
| Core | CuZn37 |
|---|---|
| Surface | Reconstituted structure |
| Color | Black |
| Tensile strength | 900 MPa / 130,000 PSI |
| Elongation | 1% |
| Conductivity | 20% IACS |
| Diameter | 0.20 / 0.25 / 0.30 mm |
Product highlights
- A flat reconstituted layer on the wire surface ensures fast and stable discharging
- Metallographical reconstituted structure: beta + cone cracks + black layer.
- Black color product surface that is different from traditional EDM wire
blac machine setting recommendations
| Manufacturer | Machine | Setting | Recommendations |
|---|---|---|---|
| Agie | AC Progress V/VP | VS900 | Appropriately increase "P" one or two notches to increase speed |
| Charmilles | x40/x40cc/x40SL | Brass (Standard) | Appropriately lower "B" or increase "FF" one or two notches to increase speed |
| GFMS | E350/P350/Cut2000 | VS900 | Appropriately increase "P" one or two notches to increase speed |
| Sodick | AlN/AG/AD series | Brass (Standard) | Appropriately increase "ON" or lower "OFF" one or two notches to increase speed |
| Mitsubishi | MV/Fa series | Brass (Standard) | Appropriately increase "E" one or two notches to increase speed |
| Seibu | M50A/M50B | Brass (Standard) | Appropriately increase "ENERGY" one or two notches to increase speed |
| Makino | U3/U6 | Brass (Standard) | Appropriately increase "EZ" one or two notches to increase speed |
| FANUC | α-C400/α-C600 | Brass (Standard) | Appropriately increase "ON" or lower "OFF" one or two notches to increase speed |
Additional machine settings notes
- blacspark wire is the high-speed wire series, the processing condition is suggested to be controlled within 4 cutting times to get a better performance
- If the wire breakage occurs in the processing, adjust the above parameters in reverse by one to two notches
- The Old Mitsubishi FA series machinery have the potential risk which as the color of wire is darkly black with a lower light sensitivity, the wire may cannot be sensed by the light sensor and the wire will fail to auto-threading. We suggest replacing the new generation light sensor
- The old Sodick AQ series machine may have the wire breakage risk due to poor flushing or poor working conditions, so the machine is recommended to keep a good maintenance
blacspark flyer
You will find all the information about blacspark summarized in our flyer:
blacspark factory packaging
| Spool Type | Weight / Spool | Spools / Carton | Weight / Carton |
|---|---|---|---|
| P5 | 5 kg | 4 | 20 kg |
| P10 | 10 kg | 2 | 20 kg |
| P15 | 20 kg | 1 | 20 kg |
| DIN125 | 4 kg | 4 | 16 kg |
| DIN160 | 8 kg | 2 | 16 kg |
| DIN200 | 16 kg | 1 | 16 kg |
| DIN250 | 25 kg | 1 | 25 kg |
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Contact data
bedra, Inc.
1014 Northpointe Industrial Blvd. Unit B
Hanahan, SC 29410
United States of America
Phone: +1 843 615 7036
info-usa(at)bedra.com
Berkenhoff GmbH (headquarters)
- Kinzenbach plant
- Berkenhoffstrasse 14
- 35452 Heuchelheim
- Germany
- +49 641 601 0
- +49 641 601 222
- info(at)bedra.com
Berkenhoff GmbH
- Merkenbach plant
- Rehmühle 1
- 35745 Herborn
- Germany
- +49 2772 5002 0
- +49 2772 5002 155
- info(at)bedra.com
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