A METHOD FOR REPAIRING A SPROCKET WHEEL BY 3D PRINTING

This present disclosure provides a method for repairing a sprocket wheel by 3D printing, which includes the following steps: (1) Scanning: scan a sprocket wheel to obtain space coordinates of the surface of the sprocket wheel; (2) Model processing and code generating: compare the space coordinates o...

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Bibliographische Detailangaben
Hauptverfasser:	Tantai, Fanliang, Song, Qiwei, Yang, Qingdong, Du, Xueyun, Li, Yang, Yang, Fan, He, Jianqun, Tao, Changsheng, Zhou, Feng
Format:	Patent
Sprache:	eng
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SHOP CONVEYOR SYSTEMS STORING TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	This present disclosure provides a method for repairing a sprocket wheel by 3D printing, which includes the following steps: (1) Scanning: scan a sprocket wheel to obtain space coordinates of the surface of the sprocket wheel; (2) Model processing and code generating: compare the space coordinates of the surface of the sprocket wheel with the space coordinates of the standard surface of the sprocket wheel to obtain a need-to-be-repaired 3D model, and generate numerical control codes by slicing the 3D model; (3) 3D printing: in an initial stage of the printing, the power of a laser is set at 1200~1500W; after printing for 0.5~1.5mm, the power of the laser is set at 600~80OW; (4) post-processing: conduct sand blasting and polish processing on the sprocket wheel after 3D-printing.By using the repairing method of this present disclosure, it can repair the worn part precisely, and adopting the double-coating laser cladding method can ensure the cladding layer and the base body bonded by a metallurgical method, and meanwhile, the hardness and the wear resistance of the repaired surface of the sprocket wheel is better than the new one's. Fig. 1 Fig. 2