MANUFACTURING METHOD FOR COIL SPRING
    1.
    发明申请
    MANUFACTURING METHOD FOR COIL SPRING 有权
    线圈弹簧制造方法

    公开(公告)号:US20120055216A1

    公开(公告)日:2012-03-08

    申请号:US13294321

    申请日:2011-11-11

    IPC分类号: C21D7/06

    CPC分类号: B21F35/00 B21F99/00 B24C1/10

    摘要: A spring wire is subjected to a first shot peening process and a second shot peening process. In the first shot peening process, a first, shot is projected on the spring wire at a first projectile speed. High kinetic energy of the first shot produces compressive residual stress in a region ranging from the surface of the spring wire to a deep position. In the second spring wire process, a second shot is projected at a second projectile speed lower than the speed of the first shot. The kinetic energy of the second shot is lower than that of the first shot. The low kinetic energy of the second shot increases the compressive residual stress in a region near the surface of the spring wire.

    摘要翻译: 对弹簧丝进行第一喷丸硬化处理和第二喷丸硬化处理。 在第一次喷丸硬化过程中,第一次弹丸以第一次抛射速度投射在弹簧丝上。 第一次射击的高动能在从弹簧丝的表面到深位置的区域中产生压缩残余应力。 在第二弹簧丝加工中,以比第一弹丸的速度低的第二弹丸速度投射第二射击。 第二枪的动能低于第一枪的动能。 第二次射击的低动能增加了弹簧丝表面附近区域的压缩残余应力。

    High Strength Spring Steel, High Strength Springs and Manufacturing Method Thereof
    2.
    发明申请
    High Strength Spring Steel, High Strength Springs and Manufacturing Method Thereof 审中-公开
    高强度弹簧钢,高强度弹簧及其制造方法

    公开(公告)号:US20070256765A1

    公开(公告)日:2007-11-08

    申请号:US11661139

    申请日:2004-08-26

    IPC分类号: C21D9/02 C22C38/42

    摘要: A high strength spring steel of this invention is characterized in containing, in percent of mass, of C: 0.36-0.48%; Si: 1.80-2.80%; Mn: 0.20-1.40%; P: 0.015% or less; S: 0.010% or less; Cu: 0.10-0.50%; Ni: 0.10-2.00%; Cr: 0.05-1.20%; s-Al: 0.005-0.040%; N: 0.002-0.012%; O: 0.002% or less, while the remainder is constituted of Fe and inevitable impurities and the quantity of inclusions of 10 μm or larger in diameter per field of vision of 100 mm2 is 10 or less. A manufacturing method of high strength spring of this invention is characterized in that the high strength spring steel which is tempered to HRC52 or higher is formed into a spring shape by hot forming or cold forming and warm shot peening is carried out so as to produce a high strength spring of 1176 MPa or higher in maximum shearing stress.

    摘要翻译: 本发明的高强度弹簧钢的特征在于以质量%计含有C:0.36-0.48%; Si:1.80-2.80%; Mn:0.20-1.40%; P:0.015%以下; S:0.010%以下; Cu:0.10-0.50%; Ni:0.10〜2.00% Cr:0.05-1.20% s-Al:0.005-0.040%; N:0.002-0.012% O:0.002%以下,余量由Fe和不可避免的杂质构成,并且每个视野100mm 2以上的直径为10μm以上的夹杂物的量为10个以下。 本发明的高强度弹簧的制造方法的特征在于,回火到HRC52以上的高强度弹簧钢通过热成型或冷成型而形成为弹簧形状,并进行温喷丸硬化,以产生 最大剪切应力为1176 MPa以上的高强度弹簧。

    Manufacturing method for coil spring
    3.
    发明授权
    Manufacturing method for coil spring 有权
    螺旋弹簧的制造方法

    公开(公告)号:US08607605B2

    公开(公告)日:2013-12-17

    申请号:US13294321

    申请日:2011-11-11

    IPC分类号: C21D7/06

    CPC分类号: B21F35/00 B21F99/00 B24C1/10

    摘要: A spring wire is subjected to a first shot peening process and a second shot peening process. In the first shot peening process, a first shot is projected on the spring wire at a first projectile speed. High kinetic energy of the first shot produces compressive residual stress in a region ranging from the surface of the spring wire to a deep position. In the second spring wire process, a second shot is projected at a second projectile speed lower than the speed of the first shot. The kinetic energy of the second shot is lower than that of the first shot. The low kinetic energy of the second shot increases the compressive residual stress in a region near the surface of the spring wire.

    摘要翻译: 对弹簧丝进行第一喷丸硬化处理和第二喷丸硬化处理。 在第一喷丸硬化过程中,以弹射线的第一弹丸速度投射弹簧丝。 第一次射击的高动能在从弹簧丝的表面到深位置的区域中产生压缩残余应力。 在第二弹簧丝加工中,以比第一弹丸的速度低的第二弹丸速度投射第二射击。 第二枪的动能低于第一枪的动能。 第二次射击的低动能增加了弹簧丝表面附近区域的压缩残余应力。