Process and Performance of Selective Laser Sintered Porous-Cordierite/Carbon-Fiber Composites

Xuechao Zhu; Ping Tang; Yi Yang; Qingsong Wei

doi:10.3788/LOP55.121405

Laser & Optoelectronics Progress, Volume. 55, Issue 12, 121405(2018)

Process and Performance of Selective Laser Sintered Porous-Cordierite/Carbon-Fiber Composites

Xuechao Zhu^1、*, Ping Tang², Yi Yang², and Qingsong Wei^2、**

Author Affiliations

¹ School of Mechanic & Electronic Engineering, Suzhou Vocational University, Suzhou, Jiangsu 215104, China;

² State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China;

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Figures & Tables(11)

Fig. 1. Surface micro-morphology of carbon fiber. (a) Magnification by 140; (b) magnification by 5000

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Fig. 2. Effect of SLS process on green parts; (a) Accuracy error; (b) porosity

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Fig. 3. Compressive strength of green parts versus laser scanning speed

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Fig. 4. Effect of sintering temperature on ceramic sample. (a) Accuracy error; (b) porosity

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Fig. 5. Surface micro-morphologies of ceramic samples at different sintering temperatures; (a)(b) 1350 ℃; (c)(d) 1375 ℃; (e)(f) 1400 ℃; (g)(h) 1425 ℃

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Fig. 6. XRD patterns of original powders, green parts and ceramic samples sintered at different temperatures

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Fig. 7. Compressive strengths of ceramic samples sintered at different temperatures

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Fig. 8. Formed ceramic sample under optimal process parameters. (a) Parts after high-temperature sintering; (b) design drawing

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Table 1. Chemical compositions of cordierite powder
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Table 1. Chemical compositions of cordierite powder
Component SiO₂ Al₂O₃ Fe₂O₃ MgO Na₂O₃ Others
Mass fraction /% 50.4 34.58 0.46 13.1 0.032 1.428

Table 2. Process parameters for orthogonal experiment by SLS
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Table 2. Process parameters for orthogonal experiment by SLS
Parameter Level 1 Level 2 Level 3
Laser power /W 11 13 15
Scanning speed /(m·s^-1) 3 4 5
Scan line spacing /μm 120 150 180

Table 3. Orthogonal experimental results of formation by SLS

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Table 3. Orthogonal experimental results of formation by SLS

Laserpower /W	Scanning speed /(m·s^-1)	Scanlinespacing /μm	Porosity /%	Diametererror /%	Heighterror /%
11	3000	120	77.42	0.075	5.8
11	4	150	77.64	2.025	4.2
11	5	180	78.41	2.525	2.65
13	3	150	78.47	3.8	4.45
13	4	180	77.69	1.125	6.45
13	5	120	77.10	1.1	5.1
15	3	180	77.20	0.05	8.25
15	4	120	77.40	0.4	9.8
15	5	150	77.04	1.575	5

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Xuechao Zhu, Ping Tang, Yi Yang, Qingsong Wei. Process and Performance of Selective Laser Sintered Porous-Cordierite/Carbon-Fiber Composites[J]. Laser & Optoelectronics Progress, 2018, 55(12): 121405

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