Method for manufacturing an extrusion die
AssigneeWEFA Singen GmbH
InventorsOliver Maier, Joachim Maier
Life of this patent
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Abstract
Method for producing an extrusion die having a functional surface for metal extrusion material, comprising the following steps: providing a die support body, depositing a weldable substance containing cobalt and/or nickel onto a subsection of the die support body by means of an effective bonding application process to produce an inseparable deposition layer, machining the deposition layer in a chipping and/or material removal process to form the functional surface of the extrusion die, and carrying out a CVD coating process with a reaction gas at least on the functional surface.
Claims18
Method for producing an extrusion die having a functional surface for metal extrusion material, comprising the following steps:
- providing (10) a die support body (50),
- depositing (14) a weldable substance containing cobalt and/or nickel onto a subsection of the die support body by means of an effective bonding application process to produce an inseparable deposition layer (52),
- machining (20) the deposition layer in a chipping and/or material removal process to form the functional surface (54) of the extrusion die, and
- carrying out a CVD coating process (22) with a reaction gas at least on the functional surface.
Method for measuring surface wear of an extrusion die, comprising the steps of:
- producing a first sample as the extrusion die with a coating,
- bringing the first sample into contact with a friction partner that comprises an aluminium alloy, particularly an alloy used to create an aluminium extrusion substance, which acts on the first sample by relative rotation at a predetermined or adjustable relative rotating speed and under predetermined or adjustable pressure,
- recording a surface wear condition of the sample after at least one preferably predetermined interaction time, and
- comparing the wear condition or a time period assigned to a predetermined or defined wear condition with values recorded by the method for a second sample having a different coating.
Dependencies are inferred from the claim text.