Shaping apparatus and method of shaping a workpiece
AssigneeROLLS-ROYCE plc
InventorsRichard Green, Michael John Annear
Life of this patent
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Abstract
A shaping apparatus for shaping a workpiece. The apparatus comprises first and second pairs of shaping members and a spacer located between the first and second pairs of shaping members. The first pair of shaping members comprises a material having a first linear coefficient of thermal expansion, and the second pair of shaping members comprises a material having a third linear coefficient of thermal expansion. The first linear coefficient of thermal expansion is higher than the second linear coefficient of thermal expansion such that on heating of the apparatus, thermal expansion of the shaping members causes the first pair of shaping members to expand outwardly, and the second pair of shaping members to expand inwardly.
Claims13
A shaping apparatus for shaping a workpiece, the apparatus comprising:
- a first pair of shaping members comprising a material having a first linear coefficient of thermal expansion, and a spacer located between the first pair of shaping members, the spacer comprising a material having a second linear coefficient of thermal expansion;
- and
- a second pair of shaping members comprising a material having a third linear coefficient of thermal expansion, wherein
- the spacer is located between the second pair of shaping members;
- and
- the first and third linear coefficients of thermal expansion are higher than the second linear coefficient of thermal expansion such that on heating of the apparatus, thermal expansion of the shaping members causes the first pair of shaping members to expand outwardly, and the second pair of shaping members to expand inwardly.
Dependencies are inferred from the claim text.