JPH02122706U

JPH02122706U -

Info

Publication number: JPH02122706U
Application number: JP2878689U
Authority: JP
Priority date: 1989-03-14
Filing date: 1989-03-14
Publication date: 1990-10-09
Anticipated expiration: 2004-03-14
Also published as: JP2523987Y2

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
インサートの平面図、第２図は第１図のノーズ部
分の要部拡大図、第３図は第１図の−線視図
、第４図１は第２図の−線部分拡大断面図、
第４図２は第２図の−線部分拡大断面図、第
４図３は第２図の−線部分拡大断面図、第５
図は第２図の−線部分拡大断面図、第６図は
切削抵抗（Kg／mm^２）を（切込み量ｘ送り量／ｒ
ｅｖ．）との関係であらわしたグラフ、第７図は
送り連度（mm／ｒｅｖ．）と切込み量（mm）との
関係における有効切削領域を示すグラフ、第８図
は従来のスローアウエイインサートの平面図、第
９図は第８図の−線部分断面図、第１０図は
第８図の−線視図である。ａ……菱形状インサート本体、１……切刃、
２……ノーズ、３……第１突起部、４，４……第
２突起部、５，５……第３突起部、８……ブレー
カ用溝。 Fig. 1 is a plan view of a throw-away insert showing an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of the nose portion of Fig. 1, Fig. 3 is a - line view of Fig. 1, Fig. 4 1 is an enlarged sectional view of the - line portion in FIG. 2;
Fig. 4 2 is an enlarged sectional view of the - line portion in Fig. 2, Fig. 4 3 is an enlarged sectional view of the - line part in Fig. 2, and Fig. 5
The figure is an enlarged sectional view of the - line part in Figure 2, and Figure 6 shows the cutting force (Kg/ ^mm2 ) (depth of cut x feed amount/r
ev. ), Figure 7 is a graph showing the effective cutting area in relation to feed rate (mm/rev.) and depth of cut (mm), Figure 8 is the plane of a conventional throw-away insert. 9 is a partial sectional view taken along the line -- in FIG. 8, and FIG. 10 is a view taken along the line -- in FIG. a...Rhombic insert body, 1...Cutting blade,
2... Nose, 3... First protrusion, 4, 4... Second protrusion, 5, 5... Third protrusion, 8... Breaker groove.

Claims

[Scope of utility model registration request]

In a polygonal insert in which the ridge line of the cutting edge has a height difference such that it becomes lower from the nose tip to the cutting side, and a plurality of breaker protrusions are provided from near the nose toward the center of the insert, each of the protrusions is A throw-away insert, characterized in that it is formed so that it gradually moves away from the cutting edge from the nose side toward the center of the insert, and gradually becomes lower according to the height difference of the ridge line.