A NOVEL DESIGN OF CRTM MOLD BY USING TRIZ SEPARATION PRINCIPLES

Ahmed OUEZGAN, Said ADIMA, Aziz MAZIRI, El Hassan MALLIL, Jamal ECHAABI

Abstract


The CRTM (compression resin transfer molding) also known as injection-compression molding (I-CM), is a variant of RTM (resin transfer molding). In this process, the upper part of the mold is rigid and moveable in order to increase the fiber volume fraction and to improve the surface quality of the part. Moreover, it minimizes the entrapment of air pockets, by applying a compression force that squeezes and displaces all air and volatiles bubbles out through the vent gate. Also, the CRTM reduces the injection pressure, fill time and gives answer to limitation of in-plane impregnation velocity as compared to RTM. Although its advantages, the CRTM needs a high force to displace the moveable upper mold and to better compress the preform, this leads to increase the cost equipment and to deform mold walls which influences the part quality. The main objective of this paper is to propose and discuss a new design of the CRTM mold, allowing at the same time to facilitate the manufacturing process, in particular to reduce the cycle time, the cost investment and to respect the material’s health by obtaining a part with minimum defects. This innovation is achieved by using the TRIZ (theory of inventive problem solving) separation principles in order to eliminate the physical contradictions that exist between the different parameters governing the CRTM process.


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References


Chang, CY., Chen, WR.: Influence of processing variables on quality of unsaturated polester/E-glass fiber composites manufactured by double-bag progressive compression method. Adv Mech Eng.10, 1–9 (2018).

Achim, V., Soukane, S., Gauvin, R., Trochu, F.: Simulation of articulated compression resin transfer molding. In: Proceedings of the 8th flow proc compos mats, pp. 232–330. 2006.

Lopatnikov, S.: A closed form solution to describe infusion of resin under vacuum in deformable fibrous porous media, Modelling Simul. Mater. Sci. Eng. 12, S191–S204 (2004).

Sozer, EM.: Manufacturing techniques for polymer matrix composites (PMCs), Woodhead Publishing Limited, Cambridge, 2012.

Potter, K.: Resin transfer moulding, Chapman & Hall, London, 1997.

Marsh, G.: Composites on the road to the big time? Reinforced Plastics 47(2):33–36 (2003).

Wang, J.: Use of medial axis to find optimal channel designs to reduce mold filling time in resin transfer molding, Compos A Appl Sci Manuf 95(Supplement C):161–72 (2017).

Song, H.: Study on high-speed RTM to reduce the impregnation time of carbon/epoxy composites, Composite Structures 119, 50–58 (2015).

Seemann, WH.: Plastic transfer molding techniques for the production of fiber reinforced plastic structures, US Patent No. 4902,215, 1990.

Choi, JH., Dharan, CKH.: Enhancement of resin transfer molding using articulated tooling, Polym. Compos 23(4), 674–681 (2002).

Choi, JH., Dharan, CKH.: Mold fill time and void reduction in resin transfer molding achieved by articulated tooling. J Compos Mater 36, 2267–2285 (2002).

Trochu, F., Soukane, S., Touraine, B.: Flexible Injection: A novel LCM technology for low cost manufacturing of high performance composites. Part II: Numerical model. In: Proceedings FPCM9. Montréal, Canada (2008).

Ruiz, E., Briones, LR., Allard, É., Trochu, F.: Flexible injection: a novel LCM technology for low cost manufacturing of high performance composites. Part I: experimental investigation. In: Proceedings FPCM9, p. 34 (2008).

Chang, CY.: Experimental analysis of mold filling in vacuum assisted compression resin transfer molding, J. Reinf Plast Comp 31,1630–1637(2012).

Chang, C.Y.: Numerical study on filling process in progressive compression method. Adv. Compos. Mater 28, 37–51 (2017).https://doi.org/10.1080/09243046.2017.1405598

Chang, C.Y.: Numerical simulation of double-bag progressive compression method of resin delivery in liquid composite moulding, Plastics, Rubber and Composites, DOI: 10.1080/14658011.2019.1647387

Savranksy, S.D.,: Engineering of creativity: Introduction to TRIZ methodology of inventive problem solving. CRC Press, Boca Raton, Florida (2000).

Ilevbare, M., Probert, D., Phaal, R.: A review of TRIZ, and its benefits and challenges in practice; Technovation 33, pp. 30-37 (2013).

Altsthuller, G. S.: The innovation algorithm; triz, systematic innovation and technical creativity. Technical Innovation Center Inc.,Worcester, MA (1999).

Mansoor, M., Mariun, N., Toudeshki, A., Wahab, N.I.A., Mian, A.U., Hojabri, M.: Innovating problem solving in power quality devices: a survey based on dynamic voltage restorer case. Renew Sustain Energy Rev. 70, 1207–1216 (2017).

Mansoor, M., Mariun, N., Toudeshki, A., Wahab, N.I.A., Mian, A.U., Hojabri, M.: Innovating problem solving in power quality devices: a survey based on dynamic voltage restorer case. Renew Sustain Energy Rev. 70, 1207–1216 (2017).

Abramov, O., Kogan, S., Mitnik-Gankin, L., Sigalovsky, I., Smirnov, A.: TRIZ-based approach for accelerating innovation in chemical engineering. Chemical Engineering Research and Design 103, 25-31(2015).

Azammi, AMN., Saquan, SM., Ishak, MR., Sultan, MTH.: Conceptual design of automobile engine rubber mounting composite using TRIZ-Morphological chart-analytic network process technique. Defence Technology, vol. 14, no. 4, pp. 268-277 (2018).

Cempel, C.: Application of TRIZ approach to machine vibration condition monitoring problems. Mechanical Systems and Signal Processing 41, 328–334 (2013).

Zhang, J., Shang, J.: Research on developing environmental protection industry based on TRIZ theory. Procedia Environmental Sciences 2, 1326-1334 (2010).

Navas, H. V. G., Tenera A. M. B. R, Machado, V. C.: Integrating TRIZ in project management processes: an ARIZ contribution. Procedia Engineering. Elsevier V./issue 131C. p. 224 – 231(2015). DOI: 10.1016/j.proeng.2015.12.381.

Zouaoua-ragab, D.: Lois d'evolution de TRiZ pour la conception des futures generations des produits : Proposition d'un modele. PhD Thesis Arts and Crafts ParisTech, 2012.

Ilevbare, M., Probert, D., Phaal, R.: A review of TRIZ, and its benefits and challenges in practice; Technovation 33, pp. 30-37 (2013).

Fey, V.: Dilemma of a Radical Innovation - A New View on the Law of Transition to a Micro-Level. TRIZ journal (1999).

Domb, E., Miller, JA.: Applying the Law of the Completeness of a Technological System to Formulate a Problem. TRIZ journal (2007).

Belu, N., Rachieru, N., Militaru, E., Anghel, D.: Application of FMEA method in product development stage. Academic Journal of Manufacturing Engineering, 10(3), 12-19 (2012).

Ko, YT.: Modeling a hybrid-compact design matrix for new product innovation. Computers and Industrial Engineering, 107, 345–359 (2017).

Dubois, S., Eltzer, T., De Guio, R. : A dialectical based model coherent with inventive and optimization problems. Computers in Industry, 60(8), pp.575–583 (2009).

Altsthuller, G. S.: Creativity as an exact science. Gordon and Breach Scientific Publishers, New York (1984).

Orloff, M.: Inventive Thinking through TRIZ: A Practical Introduction. 2nd edn. Springer, Berlin (2003).

Pokhrel, C., Cruz, C., Ramirez, Y., Kraslawski, A.: Adaptation of TRIZ contradiction matrix for solving problems in process engineering. Chemical Engineering Research and Design. Vol.103, 3–10 (2015).

D, Clausing., V, Fey.: Effective innovation: The development of winning technologies, ASME Press, New York (2004).

Amirkhosravi, M.; Pishvar, M.; Altan, M.C.: Improving laminate quality in wet lay-up/vacuum bag processes by magnet assisted composite manufacturing (MACM). Compos. Part A Appl. Sci. Manuf. 98, 227–237 (2017).

Alms JB, Advani SG. Simulation and experimental validation of flow flooding chamber method of resin delivery in liquid composite molding. Compos Part A – Appl Sci Manuf 38(10), 2131–41 (2007).

Ouezgan, A., Adima, S., Maziri, A., Mallil, E.H., Echaabi, J.: An Innovative Methodology to Design LCM Mold for Aeronautic and Automotive Industries, Springer International Publishing, (2019)


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