FIELD: ablative coatings.
SUBSTANCE: invention relates to a method for applying an ablative coating to a workpiece during laser impact hardening. The method includes preliminary cleaning with acetone and applying a preheated first layer to the surface of a metal part, which increases the adhesive properties and evens out the microroughness of the treated surface. The second layer is applied in the form of a metal tape or PVC tape on the first layer. The two layers together form an ablative coating. The prepared part is placed in a vacuum bag, vacuumized and placed in an autoclave. The remaining air in the gaps between the part and the applied ablative coating is removed under the action of increased pressure and temperature.
EFFECT: appearance of thermal defects of the part subjected to laser impact hardening is prevented.
4 cl, 2 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ELECTRIC-CONTACT WELDING OF BIMETALLIC STRIP | 2008 |
|
RU2385207C1 |
| COMBINED LASER HYDROGEN TECHNOLOGY FOR HARDENING OF SURFACES OF DETAILS OF METALS AND ALLOYS | 2016 |
|
RU2660485C2 |
| METHOD OF LASER COLD WORKING AND DEVICE EXPLOITING ABLATOR LAYERS TO PREVENT SPALLING IN LASER COLD WORKING | 2006 |
|
RU2433896C2 |
| SURFACE-HARDENING OF PARTS OPERATED AT ABRASIVE WEAR | 2013 |
|
RU2532602C2 |
| METHOD OF HARDENING CUTTING TOOL | 2015 |
|
RU2601520C2 |
| METHOD OF PROCESSING EDGES WITH MULTICHANNEL LASER | 2017 |
|
RU2685297C2 |
| METHOD OF APPLYING CHROMIUM COATING ON PRECISION PARTS FROM LOW-ALLOY STRUCTURAL STEELS | 2020 |
|
RU2732038C1 |
| METHOD OF RECONDITIONING AND HARDENING OF WORK ORGANS OF AGRICULTURAL MACHINES | 2015 |
|
RU2605259C2 |
| METAL PART PROCESSED BY COMPRESSION OF ITS SUBSURFACE LAYERS, AND METHOD OF ITS FABRICATION | 2006 |
|
RU2407620C2 |
| REPAIR METHOD OF BLADES MADE FROM STEEL ALLOY | 2006 |
|
RU2353496C2 |
