Compound tool for hot-working
First Claim
Patent Images
1. A tool for the hot-working of steel or the like, comprising:
- a first part, being a powder-metallurgical part having a surface-defining wear zone for the tool; and
a second part, being a steel part having been cast onto the first part and being intimately bonded thereto;
a bond having resulted from interfacing of the first part with the molten steel during casting, thereby establishing the compound tool.
1 Assignment
0 Petitions
Accused Products
Abstract
The compound tool is made from a powder-metallurgically-prepared portion, establishing the wear-resisting zones onto which a carrier body is cast from steel.
-
Citations
11 Claims
-
1. A tool for the hot-working of steel or the like, comprising:
-
a first part, being a powder-metallurgical part having a surface-defining wear zone for the tool; and a second part, being a steel part having been cast onto the first part and being intimately bonded thereto;
a bond having resulted from interfacing of the first part with the molten steel during casting, thereby establishing the compound tool. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. The method of making a compound, hot-working steel tool having particular surface zones expected to experience heavy wear, comprising:
-
making a first part of such a compound tool by powder-metallurgically-press-working and sintering powder, the first part having a first surface portion which will become said surface zone, further having a second surface portion; casting a second part from molten steel in a mold while using the first part in the casting process, the molten steel interfacing with said second surface portion and being cast around a part of the first part and said second surface portion; and causing the molten steel to solidify for establishing a carrier for the tool, being unreleasably bonded to the first part through an interface that includes said second surface portion, said second surface portion being configured for clamping the first part to the second part. - View Dependent Claims (8, 9, 10, 11)
-
Specification