Method for the powder metallurgical production of a component
AssigneeMahle International GmbH
InventorsHeiko Grueneberg, Alexander Jakob, Klaus Wintrich
Life of this patent
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Abstract
A method for the powder metallurgical production of a component may include providing a mould, filling a first metallurgical powder into the mould such that an outer contact surface of the first metallurgical powder in the mould forms an angle of 55° to 65° with an axis of a future green product, and filling a second metallurgical powder that is distinct from the first metallurgical powder into the mould such that the second metallurgical powder adjoins the outer contact surface of the first metallurgical powder. The method may also include producing the green product out of the first metallurgical powder and the second metallurgical powder, and sintering the green product to produce the component.
Claims9
A method for the powder metallurgical production of a component, comprising:
- producing a green product from a first metallurgical powder and a second metallurgical powder that is distinct from the first metallurgical powder;
- and
- sintering the green product;
- wherein producing the green product includes:
- providing a mould;
- filling the mould with the first metallurgical powder such that an outer contact surface of the first metallurgical powder in the mould defines an angle of 55° to 65° with an axis of the green product;
- and
- filling the mould with the second metallurgical powder such that the second metallurgical powder adjoins the outer contact surface of the first metallurgical powder;
- wherein the first metallurgical powder has a composition including:
- 0.5 to 1.8% by weight of carbon (C);
- 0 to 1.8% by weight of silicon (Si);
- 0 to 1.0% by weight of sulfur(S);
- 0 to 0.6% by weight of manganese (Mn);
- 3.0 to 15.0% by weight of chromium (Cr);
- 2.5 to 5.0% by weight of molybdenum (Mo);
- 12 to 20% by weight of copper (Cu);
- 0 to 3.5% by weight of nickel (Ni);
- 0.5 to 5.5% by weight of tungsten (W);
- 0.4 to 2.0% by weight of vanadium (V);
- and
- a remainder of iron (Fe) and production-related contaminations;
- and
- wherein the second metallurgical powder has a composition including:
- 0.7 to 1.8% by weight of carbon (C);
- 0 to 1.8% by weight of silicon (Si);
- 0 to 1.0% by weight of manganese (Mn);
- 0 to 0.5% by weight of sulfur(S);
- 2.0 to 15.0% by weight of chromium (Cr);
- 2.5 to 18.0% by weight of molybdenum (Mo);
- 0.4 to 2.0% by weight of vanadium (V);
- 10.0 to 20.0% by weight of copper (Cu);
- 0.8 to 4.0% by weight of tungsten (W);
- 0 to 12.0% by weight of cobalt (Co);
- 0 to 3.5% by weight of nickel (Ni);
- and
- a remainder of iron (Fe) and production-related contaminations.
A method for the powder metallurgical production of a component, comprising:
- providing a mould;
- filling a first metallurgical powder into the mould such that an outer contact surface of the first metallurgical powder in the mould forms an angle of 55° to 65° with an axis of a future green product;
- filling a second metallurgical powder, which is distinct from the first metallurgical powder, into the mould such that the second metallurgical powder adjoins the outer contact surface of the first metallurgical powder;
- producing the green product out of the first metallurgical powder and the second metallurgical powder;
- and
- sintering the green product to produce the component;
- wherein the sintered second metallurgical powder has a higher wear resistance than the sintered first metallurgical powder;
- wherein the first metallurgical powder has a composition including:
- 0.5 to 1.8% by weight of carbon (C);
- 0 to 1.8% by weight of silicon (Si);
- 0 to 1.0% by weight of sulfur(S);
- 0 to 0.6% by weight of manganese (Mn);
- 3.0 to 15.0% by weight of chromium (Cr);
- 2.5 to 5.0% by weight of molybdenum (Mo);
- 12 to 20% by weight of copper (Cu);
- 0 to 3.5% by weight of nickel (Ni);
- 0.5 to 5.5% by weight of tungsten (W);
- 0.4 to 2.0% by weight of vanadium (V);
- and
- a remainder of iron (Fe) and production-related contaminations;
- and
- wherein the second metallurgical powder has a composition including:
- 0.7 to 1.8% by weight of carbon (C);
- 0 to 1.8% by weight of silicon (Si);
- 0 to 1.0% by weight of manganese (Mn);
- 0 to 0.5% by weight of sulfur(S);
- 2.0 to 15.0% by weight of chromium (Cr);
- 2.5 to 18.0% by weight of molybdenum (Mo);
- 0.4 to 2.0% by weight of vanadium (V);
- 10.0 to 20.0% by weight of copper (Cu);
- 0.8 to 4.0% by weight of tungsten (W);
- 0 to 12.0% by weight of cobalt (Co);
- 0 to 3.5% by weight of nickel (Ni);
- and
- a remainder of iron (Fe) and production-related contaminations.
Dependencies are inferred from the claim text.