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CN-122029005-A - Method for coating and deep rolling a brake disk

CN122029005ACN 122029005 ACN122029005 ACN 122029005ACN-122029005-A

Abstract

The invention relates to a method for coating and deep rolling a brake disc (B), comprising the steps of B) providing a device (V5) for coating the brake disc (B), d) providing a device (V7) for deep rolling the coated brake disc (B), e) providing a device (1) for transporting the brake disc (B), i) coating a first side of the brake disc (B), j) coating a second side of the brake disc (B), and k) deep rolling both sides of the coated brake disc (B), wherein the brake disc (B) is transported by the transport device (1) at least between the device (V5) for coating the brake disc (B) and the device (V7) for deep rolling the coated brake disc (B). In order to solve the problem, steps i) and j) are performed in succession on the same device (V5) for coating the brake disk (B).

Inventors

  • Christian Hank
  • Hakata Phelan

Assignees

  • 黑根沙伊特-MFD有限公司

Dates

Publication Date
20260512
Application Date
20241010
Priority Date
20231020

Claims (13)

  1. 1. A method for coating and deep rolling a moving disc (B), comprising the steps of: b) Means (V5) for coating the brake disc (B) are provided, D) Means (V7) for deep rolling the coated brake disc (B) are provided, E) A device (1) for transporting a brake disc (B) is provided, I) Coating a first side of the brake disc (B), J) Coating the second side of the brake disc (B), and K) Deep rolling is carried out on both sides of the coated brake disc (B), Wherein the brake disc (B) is transported by the transport device (1) at least between a device (V5) for coating the brake disc (B) and a device (V7) for deep rolling the coated brake disc (B), It is characterized in that the method comprises the steps of, Steps i) and j) are performed sequentially on the same device (V5) for coating the brake disc (B).
  2. 2. The method according to claim 1, comprising the steps of: a) Means (V2) for applying a primer to the brake disc (B) are provided, C) Means (V4) for deep rolling of the primed brake disc (B) are provided, F) Applying a primer to a first side of the brake disc (B), G) Applying a primer to a second side of the brake disc (B), H) Deep rolling is carried out on two sides of the brake disc (B) with the primer, Wherein the brake disk (B) is transported by a transport device (1) at least between a device (V2) for applying a primer to the brake disk (B) and a device (V4) for deep rolling the primed brake disk (B), It is characterized in that the method comprises the steps of, Steps f) and g) are performed sequentially on the same device (V2) for applying a primer to the brake disc (B).
  3. 3. The method according to claim 1 or 2, It is characterized in that the method comprises the steps of, In step h) and/or in step k), both sides of the brake disk (B) are simultaneously deep-rolled in a feed method, for which purpose the rolls are moved in the radial direction of the brake disk (B).
  4. 4. The method according to claim 1 to 3, It is characterized in that the method comprises the steps of, A rotatable circular table (1) is provided as a transport device (1), with which circular table (1) the brake disk (B) can be moved back and forth between a plurality of positions (P), in particular between a plurality of processing positions and/or passage positions.
  5. 5. The method according to claim 4, wherein the method comprises, It is characterized in that the method comprises the steps of, The circular table (1) has a plurality of receptacles (3), preferably eight receptacles (3), for each receiving a brake disk (B).
  6. 6. The method according to claim 5, It is characterized in that the method comprises the steps of, The circular table (1) has a lifting device and/or a rotation device on at least one receptacle (3) for lifting and/or rotating the brake disc (B) during processing.
  7. 7. The method according to claim 3 to 6, It is characterized in that the method comprises the steps of, The circular table (1) can occupy at least the following positions (P), in particular the machining position and/or the pass-through position: a first position (P1) in which the brake disc (B) can be inserted and removed, A second position (P2) in which a primer can be applied to the brake disc (B), A third position (P3) in which the brake disc (B) can be tilted, A fourth position (P4) in which the primed brake disc (B) can be deep-rolled, A fifth position (P5) in which the brake disc (B) can be coated, A sixth position (P6) in which the brake disc (B) can be turned over, -A seventh position (P7) in which the coated brake disc (B) can be deep-rolled, and -An eighth position (P8) in which the brake disc (B) can be cleaned.
  8. 8. The method according to any one of claim 3 to 7, It is characterized in that the method comprises the steps of, The circular table (1) changes its direction of rotation between priming a first side of the brake disc (B) and priming a second side of the same brake disc (B), enabling the brake disc (B) to be flipped between priming the first side and priming the second side, and enabling both sides of the brake disc (B) to be primed in the same device (V2).
  9. 9. The method according to claim 3 to 8, It is characterized in that the method comprises the steps of, The circular table (1) changes its direction of rotation between a first side of coating the brake disc (B) and a second side of coating the same brake disc (B) so that the brake disc (B) can be flipped between the first side of coating and the second side of coating and so that both sides of the brake disc (B) can be coated in the same device (V5).
  10. 10. The method according to any one of claim 3 to 9, It is characterized in that the method comprises the steps of, The circular table (1) moves according to the pilger stepping method, in particular, two or more positions (P) in a first rotational direction and then one or more positions (P) in a second rotational direction opposite to the first rotational direction.
  11. 11. The method according to any one of claim 1 to 10, It is characterized in that the method comprises the steps of, The circular table (1) is moved periodically, wherein different cycle times are provided, in particular a first cycle time of about 10 seconds and a second cycle time of about 60 seconds.
  12. 12. The method according to any one of claim 1 to 11, It is characterized in that the method comprises the steps of, A device (V8) for cleaning a primed, coated and deep-rolled brake disc (B) is provided, and the brake disc (B) is cleaned using the device (V8).
  13. 13. The method according to any one of claim 1 to 12, It is characterized in that the method comprises the steps of, Before step h) and/or before step k), the brake disc (B) is cleaned.

Description

Method for coating and deep rolling a brake disk Technical Field The invention relates to a method for coating and deep rolling (Festwalzen) a brake disk, comprising the steps of b) providing a device for coating a brake disk, d) providing a device for deep rolling the coated brake disk, e) providing a device for transporting the brake disk, i) coating a first side of the brake disk, j) coating a second side of the brake disk, and k) deep rolling both sides of the coated brake disk, wherein the brake disk is transported by a transport device at least between the device for coating the brake disk and the device for deep rolling the coated brake disk. Background Disc brakes are widely used in the field of vehicle technology. These disc brakes typically comprise a brake disc with a circular braking surface and a brake caliper with two brake linings which act on both sides on the braking surface of the brake disc in order to reduce the rotational movement by friction. The annular braking surface of the brake disc is subjected to very high thermal and mechanical loads and thus to very high wear. The high wear of the brake disc not only leads to a reduction in service life but also to an increase in wear, which is released into the surroundings in the form of fine particles ("fines" or "brake dust"), and should therefore be reduced. Accordingly, various attempts have been made to coat and treat the braking surfaces of brake discs in order to improve wear characteristics. One possibility for treating the braking surface of the brake disc consists in deep rolling the braking surface of the brake disc, since deep rolling has several advantages. In deep rolling, suitable rolling bodies are guided or rolled on the braking surfaces to be processed on both sides under the action of a pressing force. In this case, different effects occur in the region of the surface or skin of the processed material, for example a smooth surface (small indentations flattened) and the material is plastically deformed and at the same time strengthened. Smoothing the surface has the advantage that, when the already very smooth surface of the brake disc is subsequently ground, only a small amount of material has to be ground away again in order to achieve the desired low roughness. This allows the coating to be made thinner, thereby saving expensive coating material, and furthermore, abrasive can be saved and grinding time reduced. Furthermore, undesired internal stresses, which may be present in the surface layer of the workpiece, can be eliminated by deep rolling, and also advantageous internal stress states can be established in the region of the surface layer by deep rolling. Early devices for deep or smooth rolling of brake discs are described, for example, in DE 1 286 932B and DE 2 217 546 A1. The device described there has two articulated lever arms, on the ends of which two large support rollers and two smaller rollers driven by the support rollers are supported. On the opposite end of the lever arms, the lever arms are connected to hydraulic cylinders which can open and close the lever arms like scissors or pliers. The workpiece to be machined (e.g., a brake disk) can be clamped between two rollers, so that the two rollers can roll the opposite braking surfaces of the brake disk synchronously. The devices described in DE 1 286 932B and DE 2 217 546 A1 from the 1960 s and 1970 s are for uncoated brake discs. Unfortunately, the idea of deep rolling has not been achieved in a satisfactory manner to date, being transferred to other brake discs, in particular coated brake discs. The reason for this is, for example, that the coating is subjected to very high mechanical loads during deep rolling, so that it may again partially come off the braking surface of the brake disk. The stripping not only results in a reduced surface quality of the braking surface, but also results in uneconomical rapid wear of the roll due to the highly abrasive nature of the stripping coating. Furthermore, in an uncoated brake disc, there is no need to save coating material (e.g. powder) at all. Disclosure of Invention The object of the invention is therefore to achieve a more advantageous production and an improvement in the properties by deep rolling even in brake discs with coated braking surfaces. This object is achieved in a method according to the preamble of claim 1 in that steps h) and i) are carried out in succession on the same device for coating a brake disk. The invention relates to a method for coating and deep rolling a brake disk. As an alternative to the brake disk, it is also possible to apply and deep-roll other disk-shaped components, in particular rotationally symmetrical components, using the method described, for example clutch disks. The method first comprises the step of providing a device for coating a brake disc (step b). Here, for example, a laser unit can be used, with which a hard material coating can be applied to the brake disk, for