Anvil
AssigneeForges de Courcelles-Centre S.A.
InventorsJean Deroulou, Claude Van Dorpe, Philippe Van Scheepdael
Life of this patent
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Abstract
The disclosure relates to a steel anvil extending along a substantially horizontal axis and along a vertical axis and comprising a base (3), a body (2) possessing a round horn (8) and a square horn (15) arranged on either side of a face (10). The disclosure further relates to portable anvils intended in particular for the smithy, in order to enable a farrier to practice his art with a maximum of facilities, even under itinerant conditions.
Claims16
A steel anvil extending along a substantially horizontal longitudinal axis and along a vertical axis and comprising a base (3), a body (2) possessing a round horn (8) and square horn (15) arranged on either side of a face (10), in the direction of the longitudinal axis, and a post (5, 6) connecting the body (2) to the base (3) in the direction of the vertical axis,
- the base (3) being in the form of a plate having a substantially planar undersurface whose length, in the direction of the longitudinal axis, is greater than its width in a direction perpendicular to that axis,
- wherein the post (5, 6) widens towards the top and towards the bottom from an intermediate zone of narrower section,
- the anvil (1) as a whole being formed by a first part comprising the body (2) and a post section (5) defined by a plane substantially parallel to the undersurface of the base (3) and situated in said zone of narrower section, and of a second part comprising the base (3) and a post section (6) defined by this same plane,
- these two parts, mutually connected by a weld (7) having high compressive strength and fatigue strength, each having been shaped by forging, in a manner such that the steel which forms them possesses a fibrous structure wherein the fibers are preferably oriented in the direction of the longitudinal axis in the body (2) and in the base (3), and in the direction of the vertical axis in each of the two post sections.
A method of manufacturing a steel anvil extending along a substantially horizontal longitudinal axis and along a vertical axis and comprising a base, a body disposed in the direction of the longitudinal axis and a post connecting the body to the base in the direction of the vertical axis, wherein said method comprises the following operations :
- preforming by drop forging of a piece of alloy steel intended to form blank for a body (2) and for an attached post section (5);
- preforming by drop forging of a second piece of steel intended to form the blank for a base (3) and for an attached post section (6);
- forging by drop forging of the blank intended to form the body (2) of the anvil (1) and the attached post section (5);
- forging by drop forging of the second blank intended to form the base (3) of the anvil (1) and the attached post section (6), the body (2) and the base (3) being stamped, in a manner such that the steel whereof they are formed adopts a fibrous structure, the fibers of this structure being preferentially orientated in the direction of the longitudinal axis of the future anvil, in the body (2) and in the base (3), and in the direction of the vertical axis in the post sections (5, 6);
- soft annealing of the body (2) and of the base (3) at a temperature in the range between 600 and 700.degree. C.;
- machining of a contact surface on the end of the post sections respectively attached to the body and to the base;
- forming of a chamfer (24) over the circumference of each of the contact surfaces;
- end-to-end welding of these free ends of the body along the perimeter of the contact surface;
- annealing of the anvil at a temperature in the range between 600 and 700.degree. C.;
- heating of the anvil at a temperature in the range between 800 and 900.degree. C.;
- oil quenching of the anvil;
- tempering of the anvil at a temperature in the range between 600 and 700.degree. C., and
- machining and finishing of the anvil.
Dependencies are inferred from the claim text.