Heated die assembly |
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| 申请号 | US46571174 | 申请日 | 1974-04-30 | 公开(公告)号 | US3926029A | 公开(公告)日 | 1975-12-16 |
| 申请人 | US AIR FORCE; | 发明人 | ABSON DAVID J; GURNEY FERDINAND J; | ||||
| 摘要 | A heated die assembly designed to bolt onto a conventional hydraulic forge press. The heated die assembly is made of a laminated, load bearing insulating stack to which is attached a plurality of split heater blocks. The blocks contain semicylindrical grooves and bolt around cartridge heaters. Bolt-on die face plates are removably mounted on the heater blocks and are readily interchangeable for a variety of forging operations. | ||||||
| 权利要求 | 1. A heated die assembly adapted to be used in conjunction with a forge press comprising a load bearing insulated stack, at least one heater block secured at one end thereof to said load bearing insulated stack and a die face plate secured to the other end of said heater block, said load bearing stack being made of alternate layers of at least two plates, one of said plates being made of a material having a high toughness, the other of said plates being made of a composite construction of two materials, one of said materials of said composite construction having high toughness and the other of said materials of said composite construction having a high compressive strength and low thermal conductivity and said heater block being made of two heater elements which contain a means for generating heat therein. 2. A heated die assembly as defined in claim 1 wherein said die face plate is removably secured to said heater block. 3. A heated die assembly as defined in claim 1 wherein the other of said plates has a cut-out portion therein, said high compressive strength, low thermal conductive material being located in said cut-out and the thickness of said high compressive strength low thermal conductive material being greater than the thickness of the plate which surrounds it. 4. A heated die assembly as defined in claim 3 wherein each of said elements of said heater block contain at least one groove therein thereby forming a hole in said heater block by the mating of adjacent grooves. 5. A heated die assembly as defined in claim 4 wherein said die face plate is removably secured to said heater block. 6. A load bearing insulated stack adapted to be used in a forge press comprising at least two plates, one of said plates being made of a material having a high toughness, the other of said plates being made of a composite construction of two materials, one of said materials of said composite construction having high toughness and the other of said materials of said composite construction having a high compressive strength and low thermal conductivity. 7. A load bearing insulating stack as defined in claim 6 wherein said other of said plates has a cut-out portion therein, said high compressive strength, low thermal conductive material being located within said cut-out portion and the thickness of said high compressive strength, low thermal conductive material being greater than the thickness of the plate which surrounds it. 8. A load bearing insulating stack as defined in claim 7 further comprising a plurality of alternate layers of said plates and said plates being removably secured to one another. 9. A load bearing insulating stack as defined in claim 8 wherein said high compressive strength, low thermal conductive material is ceramic. 10. A load bearing insulating stack as defined in claim 9 wherein said high toughness material is a super alloy. 11. A heater block adapted to be used in a forge press comprising a pair of heater elements, each of said heater elements having a plurality of grooves therein, said heater elements being secured together in such a manner that adjacent grooves form a plurality of holes within said heater block and a means for generating heat being located within said holes. 12. A heater block as defined in claim 11 wherein said interior portion of said holes are coated with a means for improving the thermal conductivity thereof. 13. A heater block as defined in claim 12 wheRein said heater elements are identical in construction and are removably secured to one another. 14. A heated die assembly adapted to be used in conjunction with a forge press comprising a load bearing insulated stack, at least one heater block secured at one end thereof to said load bearing insulated stack, said load bearing stack being made of alternate layers of two types of material one of said materials having a high compressive strength and low thermal conductivity and the other of said materials having high toughness and said heater block comprising a pair of heater elements, each of said heater elements having a plurality of grooves therein, said heater elements being secured together in such a manner that adjacent grooves form a plurality of holes within said heater block and a means for generating heat being located within said holes. |
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