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    • 1. 发明专利
    • Hot bulge forming apparatus
    • 热成型设备
    • JP2011020170A
    • 2011-02-03
    • JP2009169830
    • 2009-07-21
    • Honda Motor Co Ltd本田技研工業株式会社
    • ISHIHARA YOSHIMITSUYAMAMOTO DAISUKEKARINO TAKAYUKI
    • B21D26/033
    • B21D26/047B21D37/12B21D37/16Y10T29/49805
    • PROBLEM TO BE SOLVED: To provide a hot bulge forming apparatus capable of suppressing the production cost. SOLUTION: A hot bulge forming die forms a preheated tubular material 10d. The hot bulge forming die includes a lower die 21B having a cavity surface 211B, and an upper die 31B having a cavity surface 311B. A long hole 215 extending outwardly is formed in a circumferential edge part 214 of the lower die 21B, and a projection 315 to be fitted to the long hole 215 is formed on a circumferential edge part 314 of the upper die 31B. During the clamping, the projection 315 formed on the circumferential edge part 314 of the upper die 31B is fitted to the long hole 215 formed on the circumferential edge part 214 of the lower die 21B. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供能够抑制生产成本的热膨胀成形装置。 解决方案:热膨胀成形模具形成预热管状材料10d。 热膨胀成形模具包括具有空腔表面211B的下模21B和具有空腔表面311B的上模31B。 在下模21B的周缘部214中形成有向外延伸的长孔215,在上模31B的周缘部314上形成有与长孔215嵌合的突起315。 在夹紧期间,形成在上模31B的周缘部314上的突起315嵌合在形成在下模21B的周缘部214上的长孔215上。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Apparatus and method of hot bulge forming, and product formed by hot bulge forming
    • 热成型机的设备及方法,以及由热轧成型制成的产品
    • JP2011031265A
    • 2011-02-17
    • JP2009178953
    • 2009-07-31
    • Honda Motor Co Ltd本田技研工業株式会社
    • YAMAMOTO DAISUKEISHIHARA YOSHIMITSUKARINO TAKAYUKI
    • B21D26/033
    • B21D26/033B21D26/041B21D37/16
    • PROBLEM TO BE SOLVED: To provide a hot bulge forming apparatus capable of suppressing generation of a sink mark at a center portion in the length direction of a workpiece. SOLUTION: In the hot bulge forming apparatus 1, a preliminarily heated tubular material 10b is placed at a cavity 33A of dice 21A, 31A, air is supplied into the tubular material 10b, and the tubular material 10b is pressed to cavity surfaces 211A, 311A by the air pressure so as to be molded. Thereafter, a tubular material 10c is placed at a cavity 33B of dice 21B, 31B, air is supplied into the tubular material 10c, and the tubular material 10c is pressed to cavity surfaces 211B, 311B by the air pressure so as to be molded while the tubular material 10c is cooled by the cavity surfaces 211B, 311B. Projecting portions 331 having a circular-arc shape in cross section are formed at parts of the cavity surfaces 211A, 311A to which the end side in the length direction of the tubular material 10b is pressed. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够抑制在工件的长度方向上的中心部分产生下沉标记的热膨胀形成装置。 解决方案:在热膨胀形成装置1中,将预热管状材料10b放置在模具21A,31A的空腔33A处,将空气供应到管状材料10b中,并将管状材料10b压到腔体表面 211A,311A通过空气压力成型。 此后,将管状材料10c放置在模具21B,31B的空腔33B处,将空气供应到管状材料10c中,并且通过空气压力将管状材料10c压到空腔表面211B,311B以便模制,同时 管状材料10c被空腔表面211B,311B冷却。 在管状材料10b的长度方向的端侧被按压的空腔表面211A,311A的部分处形成横截面为圆弧形的突出部分331。 版权所有(C)2011,JPO&INPIT