Method of embedding hard cutting particles in a surface of a cutting edge of cutting tools, particularly saw blades, drills and the like

Patent · Tue Dec 18 04:00:00 EST 1984

OSTI ID:5862112

Dausinger, F; van Roda, E; Baumann, O; Miller, W; Reibetanz, W

To apply hard cutting particles, for example of tungsten carbide, on the surface of the cutting edge of a cutting tool, such as a saw blade, a drill, or the like, the cutting edge is partially melted by an energy beam, for example a laser beam, or an electron beam. A laser beam is preferred since, then, the process can be carried out in air, or in a protective gas atmosphere, rather than in a vacuum. The beam partially melts the cutting edge and the granules of the hard metal particles, preferably in a random grain size of between 0.3 to 1.5 mm is permitted to run down, over the partially melted surface, excess being collected for reuse; alternatively, the partially melted surface can be dipped into the granules, and permitted to solidify.

• Assignee: EDB-85-073643
• Patent Number(s): US 4488882
• OSTI ID: 5862112
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CARBIDES
CARBON COMPOUNDS
CUTTING TOOLS
DRILL BITS
DRILLING EQUIPMENT
EQUIPMENT
HARDENING
MECHANICAL PROPERTIES
MELTING
PHASE TRANSFORMATIONS
REFRACTORY METAL COMPOUNDS
SOLIDIFICATION
SURFACE HARDENING
SURFACE TREATMENTS
TOOLS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN CARBIDES
TUNGSTEN COMPOUNDS
WEAR RESISTANCE