JPH02104904U

JPH02104904U -

Info

Publication number: JPH02104904U
Application number: JP1119989U
Authority: JP
Priority date: 1989-01-31
Filing date: 1989-01-31
Publication date: 1990-08-21
Anticipated expiration: 2004-01-31
Also published as: JP2544444Y2

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示すスローアウエイ
インサート平面図、第２図は第１図の部分の部
分拡大図、第３図は第２図のＡ−Ａ線部分断面図
、第４図は第２図のＢ−Ｂ線部分断面図、第５図
は第２図のＣ−Ｃ線部分断面図、第６図は第２図
のＤ−Ｄ線部分断面図、第７図は従来の一般的な
スローアウエイインサートの平面図、第８図は第
７図のＥ−Ｅ線部分断面図、第９図は第７図の一
般的なスローアウエイインサートを改良した先行
例の平面図、第１０図は第９図のＦ−Ｆ線部分断
面図、第１１図は切込み量と送り速度との関係に
おける有効切削領域を示すグラフ図である。１ａ……多角形状インサート本体、１……ノー
ズ、２……突起部、３……段上り面、４……側縁
、５ａ，５ｂ……切刃、６……ブレーカ溝。 Fig. 1 is a plan view of a throw-away insert showing an embodiment of the present invention, Fig. 2 is a partially enlarged view of the part shown in Fig. 1, Fig. 3 is a partial cross-sectional view taken along line A-A in Fig. 2, and Fig. 4 is a partial cross-sectional view taken along the line B-B in Fig. 2, Fig. 5 is a partial cross-sectional view taken along the line C-C in Fig. 2, Fig. 6 is a partial cross-sectional view taken along the line D-D in Fig. 2, and Fig. 7 is a partial cross-sectional view taken along the line D-D in Fig. 2. 8 is a partial cross-sectional view taken along the line E-E in FIG. 7, and FIG. 9 is a plan view of a previous example that is an improved version of the general throw-away insert in FIG. 7. FIG. 10 is a partial sectional view taken along the line FF in FIG. 9, and FIG. 11 is a graph showing the effective cutting area in relation to the depth of cut and the feed rate. 1a... Polygonal insert body, 1... Nose, 2... Protrusion, 3... Stepped surface, 4... Side edge, 5a, 5b... Cutting edge, 6... Breaker groove.

Claims

[Scope of utility model registration request]

From the nose tip of the polygonal insert body toward the center seat, a protrusion and a stepped surface are formed in sequence through a breaker groove, the protrusion being higher than the nose tip, and the stepped surface being higher than the protrusion. 1. A throw-away insert, characterized in that it is formed lower, and further that the step-up surface has side edges that are substantially parallel to the cutting edge.