Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent
1994-07-27
1996-03-05
Neuder, William P.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Floor-working
37446, 1727725, E01C 2312
Patent
active
054961319
ABSTRACT:
The present invention relates to a tool and a metal tip of the tool. The tool includes a tool blank, a bearing portion and a metal tip where the tool is intended to be rotatably mounted in a road planing cutter. The longitudinal axis of the tool forms, in active position, an angle V in the interval 20.degree.-90.degree. relative to the road surface. The metal tip includes a portion for attachment to the tool blank and a cylindrical or slightly conical portion that is connected to a shape-defining surface located at the opposite end of the metal tip in relation to the attachment portion. The metal tip is mounted in the tool and contacts the road surface in the active position. The metal tip has a sharp edge in the transition between the cylindrical or slightly conical portion and the shape-defining surface.
REFERENCES:
patent: 4783123 (1988-11-01), Ottestad
patent: 4784517 (1988-11-01), Bergqvist et al.
patent: 5054217 (1991-10-01), Nilsson et al.
patent: 5213171 (1993-05-01), Clench et al.
"Test och utva/ rdering av slitage-motst.ang.ndet hos Va/ gst.ang.l" (Teknikum, Uppsala universitet, Dec. 1983. ISSN 0346-8887).
"Tribological testing of traditional road-grading steel leading to the evolution of new road preparation concepts", (Wear 130, 1989, s. 151-165).
"Model studies on cutting, grinding and abrasive wear of materials" (Teknikum, Uppsala universitet, ISBN 91-554-222-5).
Neuder William P.
Sandvik AB
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