▎ 摘　　要

NOVELTY - Preparing nylon 6 base heat conducting material based on additive manufacturing, comprises (i) processing the surface of the heat-conducting filler, uniformly mixing the composite powder, (ii) designing three-dimensional computer-aided design (CAD) model by computer aided design, converting into (standard tessellation language) STL file, introducing the STL file into the SLS forming device, (iii) paving the nylon 6 composite powder in the SLS forming device powder supply cylinder, setting the proper SLS forming technique parameter, using the laser beam emitted by the carbon dioxide (CO2) laser to selectively scan the powder layer under the control of the computer, after finishing a layer of sintering, reducing the height of a section layer of the working table, performing the next layer of paving powder, sintering, stacking into three-dimensional entity layer by layer, and (iv) naturally cooling molded piece in the forming cylinder, and removing powder on the surface residual. USE - The method is useful for preparing nylon 6 base heat conducting material based on additive manufacturing. ADVANTAGE - The material has excellent thermal conductivity and good mechanical properties. DETAILED DESCRIPTION - Preparing nylon 6 base heat conducting material based on additive manufacturing, comprises (i) processing the surface of the heat-conducting filler, using two-step mixing method to prepare nylon 6 powder and modified heat-conducting fille, r uniformly mixing the composite powder, (ii) designing three-dimensional computer-aided design (CAD) model by computer aided design, using layered software to process to obtain the data information of each processing layer and converting into (standard tessellation language) STL file, introducing the STL file into the SLS forming device, (iii) paving the nylon 6 composite powder in the SLS forming device powder supply cylinder, setting the proper SLS forming technique parameter, using the laser beam emitted by the carbon dioxide (CO2) laser to selectively scan the powder layer under the control of the computer, after finishing a layer of sintering, reducing the height of a section layer of the working table, performing the next layer of paving powder, sintering, stacking into three-dimensional entity layer by layer, and (iv) naturally cooling the molded piece in the forming cylinder, after cooling to less than 80degrees Celsius, taking out, after sand blasting, and removing the powder on the surface residual.