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Foreword Special Edition for New CX-5 Introduction of All-New CX-5 (M. Kodama, M. Yamada, K. Kinoshita, J. Suzuki, S. Mori) ············································································· 3 Advanced Production Engineering Process Introduction of Roadster RF (M. Nakayama, M. Yamaguchi, T. Shimomura) ······························································································ 47 (H. Matsumoto) ··········································································································································· 1 1. 2. Design of All-New Mazda CX-5 (S. Isayama) ················································································································································ 9 3. Light-Weight・High-Rigidity Body Structure of All-New CX-5 (G. Sugiyama, D. Kiyoshita, T. Narahara) ······································································································ 15 4. Quietness Development for All-New CX-5 (K. Nagamoto, T. Katsuragawa, M. Awane, T. Fujita) ······················································································ 20 5. Development of BOSE Premium Sound for All-New CX-5 (Y. Furuse, T. Nishijima, Y. Teshima, D. Sato, K. Wakamatsu, A. Hinokidani) ··················································· 25 6. Redaction Technology of Diesel Nocking Noise for SKYACTIV-D (N. Shirahashi, T. Mori, K. Iwata, K. Nagato, T. Kikuchi) ················································································ 29 7. Newly Developed Gasoline Engine “SKYACTIV-G 2.5 with Cylinder Deactivation” (A. Noda, H. Arakawa, T. Inoki, T. Yamamoto, N. Hongawara, T. Nishimoto) ······················································ 35 8. New Gasoline Engine "SKYACTIV-G 2.5" Combustion Technology (K. Kodani, T. Uemura, S. Hirashita, T. Nishio, K. Nomura, K. Hirabayashi) ···················································· 41 9. 10. Design of Roadster RF (M. Nakayama) ··········································································································································· 52 11. Development of RHT for Roadster RF (K. Matsumoto) ··········································································································································· 59 12. Proposal of Optimization for Design Parameter and Process Development with Coupling of MBD Approach and Quality-Engineering (F. Tokumitsu) ············································································································································· 64 13. Introduction of Production Engineering Endeavor to Achieve “KODO” Design in Mass Production (H. Sugiyama, M. Moriwaki, K. Takahashi) ······································································································ 70 14. Discerning Manufacturing for the Reproduction of “KODO” Design Part of Stamping Process Design (H. Otani, M. Iwata, Y. Nishimura, M. Okada) ································································································ 75 15. Discerning Manufacturing for Reproduction of “KODO” Design - Die Manufacturing - (M. Nishimoto, T. Nagazumi, T. Sasaki, K. Anraku, H. Ohtsuka) ····································································· 81 Special Edition for New Roadster RF Mazda Technical Review No.34 CONTENTS