Method for manufacturing seamless pipe

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work

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72 42, 72209, B21B 1904, B21B 1710, B21B 4502

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057787140

ABSTRACT:
A method for manufacturing a seamless pipe, comprises:

REFERENCES:
Patent Abstracts of Japan, vol. 017, No. 068 (M-1365), 10 Feb. 1993 of JP-A-04 274806 (Nippon STeel Corp), 30 Sep. 1992.
Patent Abstracts of Japan, vol. 014, No. 026 (M-921), 18 Jan. 1990 of JP-A-01 266905 (Nippon Steel Corp), 24 Oct. 1989.
Patent Abstracts of Japan, vol. 005, No. 162 (M-092), 17 Oct. 1981 of JP-A-56 089307 (Kawasaki Steel Corp), 20 Jul. 1981.
Patent Abstracts of Japan, vol. 015, No. 325 (M-1148), 19 Aug. 1991 of JP-A-03 124305 (Nippon Steel Corp), 27 May 1991.
Patent Abstracts of Japan, vol. 018, No. 034 (M-1544), 19 Jan. 1994 of JP-A-05 269507 (Sumitomo Metal Ind Ltd), 19 Oct. 1993.
Patent Abstracts of Japan, vol. 016, No. 359 (M-1289), 4 Aug. 1992 of JP-A-04 111906 (Nippon Steel Corp), 13 Apr. 1992.
Patent Abstracts of Japan, vol. 015, No. 025 (M-1071), 21 Jan. 1991 of JP-A-02 268909 (NKK Corp), 2 Nov. 1990.
Patent Abstracts of Japan, vol. 013, No. 041 (M-791), 30 Jan. 1989 of JP-A-63 248502 (Sumitomo Metal Ind Ltd), 14 Oct. 1988.
Patent Abstracts of Japan, vol. 012, No. 454 (M-769), 29 Nov. 1988 of JP-A-63 183707 (Sumitomo Metal Ind Ltd), 29 Jul. 1988.
Patent Abstracts of Japan, vol. 010, No. 333 (M-534), 12 Nov. 1986 of JP-A-61 137612 (Sumitomo Metal Ind Ltd), 25 Jun. 1986.

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