Forging die with marking means
AssigneeSnecma
InventorsAlain Lorieux, Jean-Jacques Levy, Daniel Lhomme, Claude Plazanet, Pierre George, Camille Cougnaud, Alain Bourgeois
Life of this patent
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Abstract
A forging die includes on one face, a half-imprint of a part to be forged such as a turbine engine blade. The die also includes on the face, a device for forming a marking along two directions relatively to which the position of the imprint is defined, the device including two pads protruding relatively to the face and each including two notches defining the two directions. This device preferably includes two pads machined on the die at the same time as the imprint, and each including two notches in the form of a cross.
Claims16
A method of mounting dies in a forging press, said method comprising the steps of:
- checking alignment of two pads of a forging die upon mounting said forging die in the forging press, wherein said forging die includes on a face, a half-imprint of a part to be forged and a marker on said face, said marker providing a marking along two directions relatively to which a position of said imprint is defined, said marker including said two pads protruding relatively to said face, each pad including two notches defining said two directions,
- positioning a stud in malleable material on each of the pads,
- crushing the studs between the pads of both dies and
- checking the markings provided by the notches on the studs.
A die for forging a blade of a turbine engine, said die comprising:
- a block with an imprint of a half-blade, said block having a top face, a bottom face, a first side face and a second side face opposite said first side face, said imprint extending between said first and second side faces along a main axis of said imprint;
- wherein said block includes a first notch that is closer to said first side face than to said second side face and a second notch that is closer to said second side face than to said first side face;
- wherein said first and second notches are parallel to each other and to said main axis of said imprint,
- wherein said first and second notches are at a same distance from said main axis of said imprint and are on a same side of said main axis of said imprint so as to be aligned with each other.
A for forging a blade of a turbine engine, said die comprising:
- a block with an imprint of a half-blade, said block having a top face, a bottom face, a first side face and a second side face opposite said first side face, said imprint extending between said first and second side faces along a main axis of said imprint;
- wherein said block includes a first notch that is closer to said first side face than to said second side face and a second notch that is closer to said second side face than to said first side face;
- wherein said first and second notches are parallel to each other and to said main axis of said imprint,
- wherein said first and second notches are at a same distance from said main axis of said imprint,
- wherein said block includes a third notch and a fourth notch, said third and fourth notches being perpendicular to said first and second notches, and
- wherein said third notch crosses said first notch and said fourth notch crosses said second notch.
A die for forging a blade of a turbine engine, said die comprising:
- a first block with an imprint of a half-blade, said block having a top face, a bottom face, a first side face and a second side face opposite said first side face, said imprint extending between said first and second side faces along a main axis of said imprint;
- and
- another block with another imprint having a shape complementary to the half-blades,
- wherein said first block includes a first notch that is closer to said first side face than to said second side face and a second notch that is closer to said second side face than to said first side face;
- wherein said first and second notches are parallel to each other and to said main axis of said imprint,
- wherein said first and second notches are at a same distance from said main axis of said imprint.
Dependencies are inferred from the claim text.