公开(公告)号：WO2008048843A3

公开(公告)日：2008-07-03

申请号：PCT/US2007081068

申请日：2007-10-11

Applicant: KENNAMETAL INC ,  YAMAWA MFG LTD ,  HENDERER WILLARD E ,  GEORGE STEPHEN M ,  BURNS STEVEN R ,  AKAKI MR SADAYUKI

Inventor： HENDERER WILLARD E ,  GEORGE STEPHEN M ,  BURNS STEVEN R ,  AKAKI MR SADAYUKI

IPC: B23G5/18

CPC classification number: B23G5/06 ,  B23G2200/26 ,  B23G2200/48 ,  B23G2225/28 ,  B23G2225/32 ,  B23G2225/56 ,  B23G2225/60 ,  B23P15/52 ,  Y10T408/9048 ,  Y10T408/906 ,  Y10T408/9097

Abstract: A cutting tool that includes an elongate body (22) that has a forward end (26) and a rearward end (24). The elongate body (22) has a fluted portion (30) that beginning near and extends in a rearward direction from the forward end (26). The fluted portion (30) has a flute (36, 38, 40, 42) that defines a cutting edge. The flute presents a concave cutting face (60) wherein the concave cutting face (60) is defined by a first radius (R1). The flute further presents a concave core surface (66) adjacent to the concave cutting face (60) wherein the concave core surface (66) is defined by a second radius (R2). The flute presents a convex heel surface (64) adjacent to the concave core surface (66) wherein the convex heel surface (64) is defined by a fourth radius (R4).

Abstract translation: 一种切割工具，其包括具有前端（26）和后端（24）的细长主体（22）。 细长体（22）具有从前端（26）向后方开始并延伸的带槽部分（30）。 凹槽部分（30）具有限定切割边缘的凹槽（36,38,40,42）。 凹槽具有凹形切割面（60），其中凹形切割面（60）由第一半径（R1）限定。 凹槽还存在与凹形切割面（60）相邻的凹形芯表面（66），其中凹形芯表面（66）由第二半径（R2）限定。 凹槽呈现与凹形芯表面（66）相邻的凸起的后跟表面（64），其中凸起的后跟表面（64）由第四半径（R4）限定。

公开(公告)号：WO2008048853A2

公开(公告)日：2008-04-24

申请号：PCT/US2007081109

申请日：2007-10-11

Applicant: KENNAMETAL INC ,  YAMAWA MFG LTD ,  HENDERER WILLARD E ,  VOLOKH VLADIMIR ,  AKAKI MR SADAYUKI

Inventor： HENDERER WILLARD E ,  VOLOKH VLADIMIR ,  AKAKI MR SADAYUKI

IPC: B27G15/00

CPC classification number: B23G5/06 ,  B23G2200/04 ,  B23G2200/26 ,  B23G2225/28 ,  B23G2225/32 ,  B23G2225/52 ,  B23G2225/56 ,  B23G2225/60 ,  B23P15/52 ,  Y10T408/9046 ,  Y10T408/9048

Abstract: A cutting tap that has an elongate tap body (22) with a fluted section (30) at the axial forward end (24) thereof wherein the fluted section (30) includes a chamfered fluted section (54) and a finishing fluted section (56). Each cutting thread (58, 62, 66, 68) in the chamfered fluted section (54) has a cutting face (72, 76, 80) disposed at a cutting face angle that becomes more negative the more axially rearward the cutting thread (58, 62, 66, 68) is from the axial forward end (24) of the chamfered fluted section (54). Each cutting thread (58, 62, 66, 68) in the finishing fluted section (56) has a cutting face (72, 76, 80) disposed at a finishing cutting face angle that is essentially equal. The finishing cutting face angle is more negative than the cutting face angle for the cutting thread at the axial rearward termination of the chamfered fluted section (54).

Abstract translation: 1。一种切削丝锥，其具有在其轴向前端（24）处具有凹槽部分（30）的细长丝锥体（22），其中凹槽部分（30）包括倒角凹槽部分（54）和精加工凹槽部分 ）。 倒角槽部分（54）中的每个切削螺纹（58,62,66,68）具有设置在切削面角度的切削面（72,76,80），所述切削面角度在切削螺纹（58 ，62,66,68）从倒角槽部分（54）的轴向前端（24）出来。 精加工槽部分（56）中的每个切削螺纹（58,62,66,68）具有设置在基本相等的精加工切削面角处的切削面（72,76,80）。 在倒角槽形部分（54）的轴向向后终止处，精加工切削面角度比切削螺纹的切削面角度更负。