LIP SKIN SECTOR AND A METHOD AND APPARATUS FOR FORMING A LIP SKIN SECTOR
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Accused Products
Abstract
An apparatus for forming a sector of an annular component having an arrangement for securely retaining at least a portion of a blank mountable thereon. The retaining arrangement is adapted for leaving a portion of the retainable blank accessible. A punch is provided having an external surface contour shaped to correspond to the shape of all or a part of the profile of the sector of the annular component from a trailing edge to a leading edge and/or from a leading edge to an inlet edge. The apparatus has a cooperating forming arrangement for forming the profile of the sector of the annular component from the leading edge to the inlet edge. The retaining arrangement is adapted for forming a clamping boundary enclosing the accessible part of the blank to be formed by the punch.
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Citations
55 Claims
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1-33. -33. (canceled)
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34. An apparatus for forming a sector of an annular component, comprising:
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means for securely retaining at least a portion of a blank mountable thereon; wherein the retaining means is adapted for leaving a portion of the retainable blank accessible; a punch having an external surface contour shaped to correspond to the shape of all or a part of the profile of the sector of the annular component from a trailing edge to a leading edge or from a leading edge to an inlet edge; wherein the punch or the retaining means is capable of radial movement so that the punch is capable of coming into contact with the accessible portion of the blank for forming the blank from the trailing edge to the leading edge; wherein the retaining means is adapted for allowing controlled flow of the blank material through the retaining means as the punch comes into contact with the blank for draw forming the blank across the punch; cooperating forming means for forming the profile of the sector of the annular component from the leading edge to the inlet edge; wherein the retaining means is adapted for forming a clamping boundary enclosing the accessible part of the blank to be formed by the punch; wherein the retaining means is adapted to define a gap for facilitating location of the punch; wherein the retaining means comprises a blank holder and a die; and wherein the die is a die plate which has a cut out and the blank holder has a cutout defining the gap and being formed for alignment with the cutout of the die plate in use. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method of forming a sector of an annular component, the method comprising the steps of:
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clamping at least part of a blank along a clamping boundary in a retaining means so as to leave a portion of the blank exposed within the clamping boundary; moving a punch or retaining means radially so that the punch comes in to contact with the exposed portion of the blank and through the main body of the exposed blank thereby drawing the blank onto an external surface of the punch forming the sector from the leading edge to the trailing edge; activating cooperating forming means for engaging the blank; drawing the blank over the punch forming the sector of the annular component from the leading edge to the inlet edge; and aligning a cut out of a die and a cutout of a blank holder defining a gap for facilitating location of the punch. - View Dependent Claims (55)
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Specification