Fine brass type alloy wire OB-7S wire
Features
- This type has the smallest wire diameter in the series.
- It uses a brass type special alloy, realizing a reduction of cost compared to expensive tungsten wire.
- It exhibits maximum EDM performance in a wire EDM machine intended exclusively for using fine wire for precision machining of molds for lead frames, and so on.
- The wire diameter is 0.07mmf.
- Compared to 0.05mmf tungsten wire, the cut face is at least as good and also the machining speed is the same.
Product name
OB - Wire diameter symbol Type symbol (Bobbin symbol) (Standard QTY)
Wire diameter and characteristics
| Wire diameter symbol | Type symbol | Standard wire diameter mm |
Wire diameter tolerance mm |
Tensile strength MPa |
Fracture load N |
Conductivity % |
|---|---|---|---|---|---|---|
| 7 | S | 0.07 | +/-0.001 | 950(Min) | 3.7(Min) | 21(Min) |
Bobbin
| Bobbin symbol | Standard Quantity of wire kg |
|
|---|---|---|
| P-3R | 0.5 |  |
| 1.5 |  |
|
is a standard stock product, and is a product on that can be produced to order.
