研究目的
Investigating the feasibility of using selective laser melting (SLM) technology to fabricate metal-bonded grinding wheels with optimal process parameters and evaluating their manufacturability.
研究成果
The study proves the feasibility of SLM-fabricated metal-bonded grinding wheels with optimal process parameters (laser power of 250W, scanning speed of 2.5m/s, layer thickness of 20μm). Diamond abrasives are firmly embedded into the aluminium alloy binder with good bonding condition. The manufacturability of SLM-fabricated composite was evaluated, providing a basis for further investigation on grinding wheels with customized porous structures.
研究不足
The size of abrasives may be restricted due to the limitations of SLM process. Production efficiency may be restricted for large grinding wheels or complex porous structures. Further investigation is needed to diminish cracks or voids defects inside the as-built SLM composite.
1：Experimental Design and Method Selection:
Taguchi method was adopted to design the experiment and optimize the SLM process parameters (laser power, scanning speed, layer thickness) for fabricating metal-bonded grinding wheels.
2：Sample Selection and Data Sources:
Mixed powders of diamond abrasives and AlSi10Mg powders were used as raw materials.
3：List of Experimental Equipment and Materials:
SLM machine with laser wavelength of 1064nm and spot diameter of 70μm, universal mechanical test machine for compression and bending tests, SEM and OM for material characterization.
4：Experimental Procedures and Operational Workflow:
Fabrication of specimens with different SLM process parameters, mechanical property tests (compression and three-point bending), material characterization, and manufacturability test of various structures.
5：Data Analysis Methods:
Analysis of variance (ANOVA) was performed to determine the optimal SLM process parameters based on mechanical property test results.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
