Abstract
In the hole making process, CFRP often has defects such as burrs and tears. Especially, it is more difficult to make high-quality and high-efficiency holes in thick-section CFRP which has a negative effect on its application. Based on the analysis of the mechanism of helical milling, the orthogonal experiments on the 24-mm Carbon Fiber Reinforced Plastics (CFRP) that affect the quality of hole making, such as spindle speed, feed per tooth, and number of blade teeth were conducted. The influence of process parameters on the quality of hole making was analyzed. Finally, the range analysis method was used to obtain the optimal hole-making parameters: spindle speed is 4500 rpm, feed per tooth is 0.02 mm/z, the number of blade teeth is 2. Based on the obtained optimal parameters, a novel hole making process with variable parameters was proposed, and two groups of parameter combinations were designed. Through the analysis of the hole morphology, surface roughness, axial force, and aperture deviation after the experiment, it is concluded that hole making process with variable parameters can meet the technical requirements of thick-section CFRP.
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Abbreviations
- N :
-
spindle speed (rpm)
- f :
-
axial feed (mm/min)
- ω :
-
helical speed (rpm)
- e :
-
eccentricity (mm)
- D :
-
aperture (mm)
- d :
-
tool’s diameter (mm)
- Z n :
-
the number of blade teeth
- β :
-
helix angle (°)
- Ψ :
-
the amount of material removal (mm)
- f z :
-
feed per tooth (mm/z)
- F z :
-
axial force (N)
- Ra:
-
roughness (μm)
- y jk :
-
the sum of indicators corresponding to j factor and k level
- R j :
-
the range of j factor
- R' :
-
conversion range
- d i :
-
conversion coefficient
- i :
-
the number of levels
- r i :
-
the number of repetitions at each level
References
Liu DF, Tang YJ, Cong WL (2012) A review of mechanical drilling for composite laminates. Compos Struct 94(4):1265–1279
Chen Y, Ge ED, Fu YC (2015) Review and prospect of drilling technologies for carbon fiber reinforced polymer. Acta Mater Compositae Sin 32(2):301–316. https://doi.org/10.13801/j.cnki.fhclxb.20150211.002
Ma LM, Zhang JZ, Yue GQ (2015) Application of composites in new generation of large civil aircraft. Acta Mater Compositae Sin 32(2):317–322. https://doi.org/10.13801/j.cnki.fhclxb.20150122.001
Liu XM, Sun HL, He LY (2018) Research status and development trend of CFRP drilling technology. Fiber Reinf Plast/Compos 03:101–106
Koplev A, Lystrup A, Vorm T (1983) The cutting process, chips, and cutting forces in machining CFRP. Composites 14(4):371–376
Zhang L, Liu Z, TianW LW (2015) Experimental studies on the performance of different structure tools in drilling CFRP/Al alloy stacks. Int J Adv Manuf Technol 81:241–251. https://doi.org/10.1007/s00170-015-6955-z
Qiu X, Li P, Niu Q, Chen A, Ouyang P, Li C, Ko TJ (2018) Influence of machining parameters and tool structure on cutting force and hole wall damage in drilling CFRP with stepped drills. Int J Adv Manuf Technol 97:857–865. https://doi.org/10.1007/s00170-018-1981-2
Wang XD, Wang FJ, Li SK, Wang SF (2020) Research on variable parameter hole-making process of large thickness carbon fiber reinforced plastic. J Dalian Univ Technol 60(6):591–598
Wangyang N (2007) Orbital drilling of aerospace materials. SAE Tech 1:3814–3822
Qin XD, Chen SM, Liu WC (2009) Development and application of hole helical milling technology in aviation manufacturing assembly industry. Aeronautical Manuf Technol 06:58–60
Wang Q, Wu Y, Li Y, Lu D, Bitoh T (2018) Proposal of a tilted helical milling technique for high-quality hole drilling of CFRP: analysis of hole surface finish. Int J Adv Manuf Technol 101:1041–1049. https://doi.org/10.1007/s00170-017-1106-3
Sha ZH, Liu YF, Wu D, Zhang SF, Ma FJ, Liu Y (2018) Design of helical milling hole-machining end effector and motion simulation analysis. Mach Tool Hydraul 46(13):84–87
Yang GL, Dong ZG, Kang RK (2020) Research progress of helical milling technology. Acta Aeronaut. Astronaut Sin 41(7):18–32. https://doi.org/10.7527/S1000
Liao YP, Yan QY (1984) Application of orthogonal test method in machinery industry. Beijing
Jin LC, Yu J (2016) Multi-index optimization experiment design and application. Beijing
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This paper was funded by the Natural Science Foundation of Liaoning Province Grant (no.2019-ZD-0029) and the University of Science and Technology Liaoning Talent Project Grants (no. 601011507-32).
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Determine the research direction and list the outline: Anyuan Jiao; Study on the mechanism: Jianping Li; Experiment and data analysis: Xiaomei Chen and Jianping Li; original draft preparation: Jianping Li.
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Li, J., Jiao, A. & Chen, X. Study on hole making process of thick-section CFRP. Int J Adv Manuf Technol 117, 3369–3378 (2021). https://doi.org/10.1007/s00170-021-07929-z
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DOI: https://doi.org/10.1007/s00170-021-07929-z