Laser weld quality monitoring method and system
    1.
    发明授权
    Laser weld quality monitoring method and system 有权
    激光焊接质量监测方法及系统

    公开(公告)号:US06710283B2

    公开(公告)日:2004-03-23

    申请号:US10081153

    申请日:2002-02-25

    IPC分类号: B23K2600

    摘要: Infrared reflection of a laser beam (LB3) irradiated on a welding part (WP) of work (5) is detected by a sensor (6a) high of elevation angle, where it is converted into an electrical signal, which is processed by a measuring circuit (MC) to be input to a quality monitor (QM), where it is stored as a data in a memory (7g), which data is processed by way of a spectral analysis, which calculates a spectral distribution of electrical signal, and a signal power sum in a particular frequency band, to be compared with a threshold value for decision on occurrence of a significant porous state.

    摘要翻译: 照射在工件(5)的焊接部分(WP)上的激光束(LB3)的红外反射通过高仰角的传感器(6a)检测,其被转换成电信号,该电信号由测量 电路(MC)输入到质量监视器(QM),其中它作为数据存储在存储器(7g)中,该数据通过频谱分析进行处理,频谱分析计算电信号的频谱分布;以及 在特定频带中的信号功率和与要用于确定显着多孔状态的出现的阈值进行比较。

    Pad clip for disc brake
    2.
    发明授权
    Pad clip for disc brake 失效
    盘式制动器垫片

    公开(公告)号:US5941348A

    公开(公告)日:1999-08-24

    申请号:US956021

    申请日:1997-10-22

    CPC分类号: F16D65/0977 F16D65/0972

    摘要: A friction pad for braking cooperates with a support member, which receives a brake torque produced in the friction pad, in forming a recess and projection fitting portion. A pad clip is interposed between the friction pad and the support member to thereby be able to reduce the sliding resistance of the friction pad. An anchor piece, which extends downwardly from a U-shaped portion of the pad clip, is inclined and disposed in such a manner that a pad contact portion, which serves as a contact portion between the anchor piece and friction pad is situated more outwardly in the rotor diameter direction than a support contact portion serving as a contact portion between the anchor piece and the support member. Due to such arrangement of the anchor piece, the energizing actions of the anchor piece and rotor diameter direction pressing portion with the support member contact portion as the fulcrum thereof can restrict the movement of the friction pad to thereby prevent generation of a rattling noise.

    摘要翻译: 用于制动的摩擦垫与支撑构件配合,所述支撑构件在形成凹部和突出配合部分时接收在摩擦垫中产生的制动扭矩。 垫片夹在摩擦垫和支撑构件之间,从而能够降低摩擦垫的滑动阻力。 从垫夹的U形部分向下延伸的锚固件倾斜和设置成使得用作锚固件和摩擦垫之间的接触部分的垫接触部位更向外地位于 所述转子直径方向比作为所述锚固件和所述支撑构件之间的接触部的支撑接触部分。 由于锚固件的这种布置,锚固件和转子直径方向按压部分与支撑构件接触部分作为其支点的通电动作可以限制摩擦垫的运动,从而防止发出喀哒声。

    Liquid phase diffusion bonding method for dissimilar metal sheets and liquid phase diffusion bonding apparatus for the same
    3.
    发明授权
    Liquid phase diffusion bonding method for dissimilar metal sheets and liquid phase diffusion bonding apparatus for the same 有权
    用于异种金属片的液相扩散接合方法和用于其的液相扩散接合装置

    公开(公告)号:US07119309B2

    公开(公告)日:2006-10-10

    申请号:US11054547

    申请日:2005-02-10

    IPC分类号: B23K13/01

    CPC分类号: B23K20/2275 B23K20/06

    摘要: A liquid phase diffusion bonding method for dissimilar metal sheets by allowing a galvanized steel sheet and an aluminum alloy sheet to come into close contact with each other and pressing both sheets by using a first mold of a liquid phase diffusion bonding apparatus and a second mold of the same; and heating the sheets at approximately the same heat-up rate and at approximately the same temperature to perform liquid phase diffusion bonding of the sheets by using induction heat generated by applying high frequency currents to a first high frequency induction heating coil provided on the first mold and a second high frequency induction heating coil provided on the second mold. The first high frequency induction heating coil and the second high frequency induction heating coil are positioned to sandwich the sheets at predetermined distances from the sheets, respectively.

    摘要翻译: 通过使用镀锌钢板和铝合金板彼此紧密接触并通过使用液相扩散接合装置的第一模具和第二模具来压制两个片材来进行异相金属片的液相扩散接合方法 一样; 并以大致相同的加热速度和大致相同的温度加热片材,以通过使用通过向设置在第一模具上的第一高频感应加热线圈施加高频电流而产生的感应热来进行片材的液相扩散接合 以及设置在第二模具上的第二高频感应加热线圈。 第一高频感应加热线圈和第二高频感应加热线圈分别定位成将片材夹住预定距离的片材。

    Liquid phase diffusion bonding method for dissimilar metal sheets and liquid phase diffusion bonding apparatus for the same
    4.
    发明申请
    Liquid phase diffusion bonding method for dissimilar metal sheets and liquid phase diffusion bonding apparatus for the same 有权
    用于异种金属片的液相扩散接合方法和用于其的液相扩散接合装置

    公开(公告)号:US20050178819A1

    公开(公告)日:2005-08-18

    申请号:US11054547

    申请日:2005-02-10

    CPC分类号: B23K20/2275 B23K20/06

    摘要: A liquid phase diffusion bonding method for dissimilar metal sheets of the present invention has the steps of: allowing a galvanized steel sheet and an aluminum alloy sheet to come into close contact with each other and pressing both sheets by using a first mold of a liquid phase diffusion bonding apparatus and a second mold of the same; and heating the galvanized steel sheet and the aluminum alloy sheet at approximately the same heat-up rate and at approximately the same temperature to perform liquid phase diffusion bonding of the sheets by using induction heat generated by applying high frequency currents to a first high frequency induction heating coil provided on the first mold and a second high frequency induction heating coil provided on the second mold. The first high frequency induction heating coil and the second high frequency induction heating coil are positioned to sandwich the galvanized steel sheet and the aluminum alloy sheet at predetermined distances from the sheets, respectively. By this method, it is possible to reduce a time for bonding the galvanized steel sheet and the aluminum alloy sheet and to ensure sufficient bonding strength between the sheets.

    摘要翻译: 本发明的异种金属片的液相扩散接合方法具有以下步骤:使镀锌钢板和铝合金板彼此紧密接触并通过使用液相的第一模具来压制两片 扩散接合装置和第二模具; 以大致相同的加热速度和大约相同的温度加热镀锌钢板和铝合金板,通过使用通过将高频电流施加到第一高频感应产生的感应热来进行片的液相扩散接合 设置在第一模具上的加热线圈和设置在第二模具上的第二高频感应加热线圈。 第一高频感应加热线圈和第二高频感应加热线圈分别定位成将预定距离的片材夹在镀锌钢板和铝合金板之间。 通过该方法,可以减少接合镀锌钢板和铝合金板的时间,并且确保片之间的充分的接合强度。

    Method and apparatus for determining quality of welding at weld between working material pieces
    5.
    发明授权
    Method and apparatus for determining quality of welding at weld between working material pieces 有权
    确定工作材料片之间焊缝质量的方法和装置

    公开(公告)号:US06399915B1

    公开(公告)日:2002-06-04

    申请号:US09526752

    申请日:2000-03-16

    IPC分类号: B23K2600

    CPC分类号: B23K26/03

    摘要: In a method for determining a quality of welding at a weld between working material pieces, an emission intensity of a visible light emitted from the weld during a laser welding using a laser device emitting a laser having a wavelength falling in a range of the wavelengths of near infra-red rays is detected, a first detection signal indicating the light emission intensity of the visible light is outputted, an intensity of a reflected light of the laser from the weld during the laser welding is detected, a second detection signal indicating the light intensity of the reflected light is outputted, frequencies of the first and second detection signals are analyzed and a determination is made whether a result of the laser welding falls in a favorable range of welding and an identification of a cause of welding failure of the weld if the determination that the result of the laser welding falls out of the favorable range is made on the basis of signal intensities of a first frequency component of each of the first and second detection signals lower than an arbitrary frequency in a range from 50 Hz to 200 Hz and of a second frequency component of each of the first and second detection signals higher than the arbitrary frequency.

    摘要翻译: 在用于确定工作材料片之间的焊接处的焊接质量的方法中,使用发射具有波长在波长范围内的波长的激光器的激光焊接期间从焊缝发射的可见光的发射强度 检测到红外线附近,输出表示可见光的发光强度的第一检测信号,检测激光焊接期间来自焊接部的激光的反射光的强度,指示光的第二检测信号 输出反射光的强度,对第一和第二检测信号的频率进行分析,并确定激光焊接的结果是否落在良好的焊接范围内,并且确定焊接的焊接故障的原因,如果 基于第一频率组合器的信号强度,确定激光焊接的结果落在有利范围之外 nt的第一和第二检测信号中的每一个低于在50Hz到200Hz的范围内的任意频率以及高于任意频率的第一和第二检测信号中的每一个的第二频率分量。

    Welding method and welding device
    6.
    发明授权
    Welding method and welding device 失效
    焊接方法和焊接装置

    公开(公告)号:US5446257A

    公开(公告)日:1995-08-29

    申请号:US218630

    申请日:1994-03-28

    CPC分类号: B23K26/04

    摘要: During melting and jointing members 2, 3 to weld the members by applying a laser beam 5 to the members while supplying a filler wire 13 to the locally heated portion of the members, welding plasma intensities are measured by sensors 8, 9 from both sides of the locally heated portion with reference to an advancing direction of welding. When the welding plasma intensities measured from both sides of the locally heated portion are largely different from each other, the relative deviation between the laser beam 5 and the filler wire 13 is large, so that a good welding may be difficult to be carried out. Based on this recognitions, the relative position between the laser beam 5 and the filler wire 13 is corrected during welding to prevent occurrence of weld inferiority, so that the occurrence of weld inferiority due to the relative deviation between the the laser beam 5 and the filler wire 13 can be effectively prevented, thereby scrapped inferior members can be decreased providing a reduction of costs of materials and an improvement of weld efficiency.

    摘要翻译: 在熔融和接合构件2,3中,通过在构件的局部加热部分供给填充金属丝13的同时施加激光束5来焊接构件,焊接等离子体强度由传感器8,9从两侧 相对于焊接的前进方向的局部加热部。 当从局部加热部分的两侧测量的焊接等离子体强度大大不同时,激光束5和填充焊丝13之间的相对偏差较大,因此可能难以进行良好的焊接。 基于该识别,在焊接期间校正激光束5和填充焊丝13之间的相对位置,以防止焊接劣化的发生,从而由于激光束5和填充物之间的相对偏离而导致焊接劣化的发生 可以有效地防止钢丝13,从而降低材料成本和提高焊接效率,从而可以减少报废的下部件。