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    • 108. 发明授权
    • Rotary cutting tool having PCD cutting tip
    • 具有PCD切削刀头的旋转切削刀具
    • US08882412B2
    • 2014-11-11
    • US13105408
    • 2011-05-11
    • Karthik Sampath
    • Karthik Sampath
    • B23B51/06B23B51/02
    • B23P15/32B23B51/02B23B51/06B23B2222/88B23B2226/275B23B2226/315B23B2240/08B23B2251/046Y10T408/45Y10T408/78Y10T408/9097
    • A cutting tool for performing hole-cutting operations on a workpiece when the cutting tool is rotated about a central longitudinal axis includes a generally cylindrical body having a first end structured to be mounted to a machine tool and an opposite second end structured to engage and perform cutting operations on the workpiece. A number of coolant passages are defined in the generally cylindrical body, each coolant passage of the number of coolant passages is disposed at a first helix angle relative to the central longitudinal axis. A number of flutes are formed in the generally cylindrical body, each flute of the number of flutes includes a first portion at or about the first end of the generally cylindrical body, a second portion at or about the second end of the generally cylindrical body, and a transition portion disposed therebetween. The first portion of each flute is disposed generally at the first helix angle relative to the central longitudinal axis, the second portion of each flute is disposed generally at a second helix angle relative the central longitudinal axis, and the transition portion of each flute is disposed generally at a third helix angle relative to the central longitudinal axis greater than the first helix angle.
    • 一种用于在切割工具围绕中心纵向轴线旋转时对工件执行切孔操作的切削工具包括大致圆柱形的本体,其具有被构造成安装到机床的第一端和构造成接合和执行的相对的第二端 对工件进行切割操作。 多个冷却剂通道限定在大致圆筒体中,多个冷却剂通道的每个冷却剂通道相对于中心纵向轴线以第一螺旋角设置。 多个凹槽形成在大致圆柱形的主体中,每个凹槽数量的凹槽包括位于大致圆柱形主体的第一端处或周围的第一部分,位于大致圆柱形主体的第二端处或周围的第二部分, 以及设置在其间的过渡部。 每个凹槽的第一部分大致相对于中心纵向轴线以第一螺旋角设置,每个凹槽的第二部分相对于中心纵向轴线大致设置在第二螺旋角处,并且每个凹槽的过渡部分被设置 通常相对于中心纵轴的第三螺旋角大于第一螺旋角。
    • 109. 发明授权
    • Machining apparatus and process
    • 加工设备及工艺
    • US08839497B2
    • 2014-09-23
    • US12708959
    • 2010-02-19
    • Yung C. Shin
    • Yung C. Shin
    • B23K26/00B23B27/10B23P25/00B23Q11/10
    • B23B27/10B23B2222/88B23B2260/092B23P25/006B23Q11/1053Y10T29/5114Y10T82/10Y10T82/16065Y10T82/16081Y10T407/14Y10T407/27
    • A machining process and apparatus capable of increasing removal rates achievable when machining titanium and its alloys. The process includes heating a portion of a workpiece with a laser beam, cryogenically cooling a cutting tool with a cryogenic fluid without flowing the cryogenic fluid onto the workpiece, and machining the heated portion of the workpiece with the cutting tool. The apparatus includes a cutting tool, a device for heating a portion of a workpiece with a laser beam prior to being machined with the cutting tool, and a device for cryogenically cooling the cutting tool with a cryogenic fluid without flowing the cryogenic fluid onto the workpiece. The cryogenic fluid is circulated around the cutting tool to achieve a temperature differential between the workpiece and the cutting tool that is capable of improving removal rates and extending tool life at cutting speeds of, for example, above 100 m/min.
    • 一种加工工艺和装置,能够提高加工钛及其合金时可实现的去除率。 该方法包括用激光束加热工件的一部分,用低温流体低温冷却切割工具,而不使低温流体流动到工件上,并用切割工具加工工件的加热部分。 该设备包括切割工具,用于在用切割工具加工之前用激光束加热工件的一部分的装置,以及用低温流体低温冷却切割工具的装置,而不使低温流体流动到工件上 。 低温流体围绕切削工具循环,以实现工件和切削工具之间的温差,其能够在例如高于100m / min的切割速度下提高移除速率并延长刀具寿命。