APPLICATION
Welding of cutting tools, e.q. for turning, planning, milling, reaming, drills, etc.
CHARACTERISTICS
VHF-TOOLKORD is a basic type electrode with coating for manufacturing and repairing high-speed cutting tools.
GUIDELINE IN USAGE
1.) Preheat the workpiece up to 600-700ºC and maintain this temperature during welding. (See page 282)
Weld at the lowest possible amperage.
TYPICAL CHEMICAL COMPOSITION OF DEPOSITED METAL ( %)
C |
Mn |
Si |
Cr |
Mo |
V |
W |
0.9 |
0.5 |
0.5 |
4.2 |
8.5 |
0.9 |
1.1 |
TYPICAL HARDNESS OF DEPOSITED METAL
As-welded |
50-64 HRC |
After – heat treatment |
62-66 HRC |
SIZE & RECOMMENDED CURRENT RANGE (AC or DC+)
Diameter, mm |
2.6 |
3.2 |
4.0 |
Length, mm |
300 |
350 |
400 |
Current, A |
70-100 |
100-150 |
130-180 |
|
