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US 6,589,671 B1Granted
Method for joining a cast part and a case-hardened steel part and component manufactured according to said method
AssigneeSteyr-Daimler-Puch Fahrzeugtechnik AG & Co. KG
InventorOskar Kehrer
Life of this patent
Estimating the term…
Abstract
A method for joining a first part to a second part wherein the first part comprises machine cast iron and the second part comprises case-hardened steel comprises abrading a surface on each of the parts which are to be welded together with a groove, fitting the abraded surfaces together to form a welding groove and high-energy beam welding within austenitic welding wire for joining the parts together.
Claims13
A method of joining a first part and a second part comprising:
- providing a first part comprising a machined cast iron part;
- providing a second part comprising a machined case-hardened steel part;
- at least partially abrading a surface on each of the first part and second part which are to be welded together with a groove;
- fitting the surface of the first part together with the surface of the second part wherein the groove on each surface is opposed to each other to form a welding groove;
- and
- high-energy beam welding with an austenitic welding wire for joining the parts and forming a welding seam having a welding depth.
3 more elements
A method for joining a cast part (1;
- 21) to a part (2;
- 22) made from case-hardened steel by welding, wherein
- a) on the otherwise fully machined parts (1, 2;
- 21, 22), the surfaces (3, 7;
- 23, 27) which are to be welded are at least partially abraded in order to prepare for the welding, so that a narrow U groove, Y groove or V groove (10, 11;
- 30, 31) is formed,
- b) the parts (1, 2;
- 21, 22) are then fitted together and welded by means of a high-energy beam while an austenitic welding wire (28) is being supplied.
5 more elements
Dependencies are inferred from the claim text.