| 摘要 |
A substrate ( 33 ) is clamped into a fixture ( 32 ) and material is deposited thereon to form a complex article ( 40 ). The article ( 40 ) produced is packed, using ceramic inserts ( 42 ) and a coating ( 41 ). The packing ( 42 ) ensures that the article ( 40 ) maintains its true shape and allows for expansion during the subsequent heat treatment process. The packed article ( 40 ), mounted on the fixture ( 32 ), is then placed in a box ( 44 ), encased in a granular material ( 43 ) and heated. It is heated to a temperature sufficient to relieve stresses and is maintained at this temperature for a time period such that the stresses in the article ( 40 ) are relieved.
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