COLD TREATMENT FOR IMPROVING THE LOAD-BEARING CAPACITY OF METALLIC COMPONENTS

Abstract

A method for producing a metallic component, The method includes the method steps of first machining (103) the component and thereafter cooling (105) the component from a first temperature down to a lower second temperature. The cooling (105) occurs after the machining (103) of the component.

Claims

1-11. (canceled)

12. A method for producing a metallic component, the method comprising the following: machining (103) of the component; and cooling (105) the component from a first temperature to a second temperature, with the cooling (105) takes place after the machining (103).

13. The method according to claim 12, further comprising defining the cooling (105) of the component as being a final method step such that no additional steps that constitute a method step for producing the component occur following the cooling of the component.

14. The method according to claim 12, further comprising defining the first temperature as being a temperature of a space in which the method is carried out.

15. The method according to claim 12, further comprising defining the first temperature as being between 5° C. and 35° C.

16. The method according to claim 12, further comprising defining the second temperature as being between −50° C. and −200° C.

17. The method according to claim 12, further comprising: warming (107) the component from the second temperature at least up to the first temperature; and connecting (109) the component to a first further component, with the connecting (109) step taking place after the warming (107) step.

18. The method according to claim 17, further comprising forming the connection (109) by at least one of shrink-fitting the component and cold-shrinking the first further component.

19. The method according to claim 12, further comprising the component has at least one working surface and a further second component has at least a second working surface, the first working surface and the second working surface can at least one of roll on and slide against one another in such manner that the first working surface forms together with the second working surface, a working surface pair for transmitting a force.

20. The method according to claim 19, further comprising defining the component as either a gearwheel or part of a bearing.

21. The method according to claim 20, further comprising fitting the gearwheel onto a shaft after the cooling (105).

22. The method according to claim 12, further comprising: first hardening (101) the component; and machining (103) the component after the hardening (101).

23. A method for producing a metallic component, the method comprising: defining component producing process steps as being process steps that, when conducted on the metallic component, permanently change at least one property of the metallic component and defining non-component producing process steps as being process steps that, when conducted on the metallic component, only temporarily change at least one property of the metallic component; conducting a hardening, component producing process step by heating and quenching the metallic component; conducting a machining, component producing process step by which the metallic component is machined and during which the metallic component is at a first temperature; conducting a cooling, component producing process step directly following the machining, component producing process step by immersing the metallic component in a liquid which is at a second temperature, that is lower than the first temperature, to cool the metallic component from the first temperature to the second temperature; defining the cooling, component producing process step as a final, component producing process step to prevent further permanent changes of at least one property of the metallic component following cooling the metallic component from the first temperature to the second temperature; conducting a warming, non-component producing process step to warm the metallic component back toward the first temperature by removing the metallic component from the liquid at the second temperature: and permanently connecting the metallic component to another component.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] A preferred example embodiment of the method according to the invention is represented in the sole FIGURE, which shows in detail a flow chart of the inventive method.

DETAILED DESCRIPTION OF THE DRAWING

[0030] The method illustrated in sole FIGURE comprises the following process steps: [0031] hardening 101 of a metallic component; [0032] machining 103 of the component; [0033] cooling 105 of the component from a first temperature to a second temperature; [0034] warming 107 of the component from the second temperature at least to the first temperature; and [0035] connecting 109 the component to a further component.

INDEXES

[0036] 101 Hardening [0037] 103 Machining [0038] 105 Cooling [0039] 107 Warming [0040] 109 Connecting