Method for the manufacturing of a saw blade
AssigneeC. & E. Fein GmbH
InventorsAndreas Peisert, Roland Pollak
Life of this patent
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Abstract
A new saw blade and a method of manufacturing such a saw blade are disclosed. The saw blade is made from a hardenable steel sheet in one piece and comprises a plain cutting blade from which a cranked mounting part, having a central mounting opening, protrudes. To manufacture such saw blades, blanks are cut out from a hardenable steel sheet and subsequently deep-drawn to provide the cranked mounting part. The mounting openings may be produced by stamping, thereafter. A plurality of such blanks is stacked over each other and clamped in a fixture, subsequently annealed for recrystallization and austenization and quenched thereafter, to harden the blanks. Finally, saw teeth are provided along the outer edges of the cutting blades.
Claims16
A method for manufacturing a saw blade, having a cutting blade, on which a cranked mounting part protruding beyond the cutting blade is provided, the mounting part having a mounting opening for fastening on a motor shaft, said method comprising the following steps:
- (a) cutting a blank out of hardenable steel sheet;
- (b) forming said blank to form the cranked mounting part;
- (c) cutting out a mounting opening;
- (d) stacking a plurality of blanks produced according to steps (a) to (c) and clamping in a fixture;
- (e) heating said stack for austenization and quenching thereafter, to harden said blanks;
- and
- (f) finish-machining said saw blades to provide saw teeth at their outer edges.
Dependencies are inferred from the claim text.