JPS6172310U - - Google Patents
Info
- Publication number
- JPS6172310U JPS6172310U JP15731684U JP15731684U JPS6172310U JP S6172310 U JPS6172310 U JP S6172310U JP 15731684 U JP15731684 U JP 15731684U JP 15731684 U JP15731684 U JP 15731684U JP S6172310 U JPS6172310 U JP S6172310U
- Authority
- JP
- Japan
- Prior art keywords
- end side
- set larger
- plug
- die
- spiral groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Metal Extraction Processes (AREA)
Description
第１図はこの考案の一実施例を示す正面図、第
２図はその螺旋溝の展開図、第３図は第２図の
−線矢視拡大図、第４図は第２図の−線矢
視拡大図、第５図は使用状態の略解図、第６図は
従来のプラグで形成したリブの断面形状を示す図
である。
１０…プラグ、１２…螺旋溝、１２Ａ…前方側
壁、１２Ｂ…後方側壁、１８…開口端エツジ部、
２０…素管、２１…螺旋状リブ、φ１，φ２…リ
ード角、ｒ１，ｒ２…曲率半径。
Fig. 1 is a front view showing an embodiment of this invention, Fig. 2 is a developed view of the spiral groove, Fig. 3 is an enlarged view taken along the - line in Fig. 2, and Fig. 4 is - of Fig. 2. FIG. 5 is an enlarged view in line with arrows, FIG. 5 is a schematic illustration of the state of use, and FIG. 6 is a diagram showing the cross-sectional shape of a rib formed by a conventional plug. DESCRIPTION OF SYMBOLS 10... Plug, 12... Spiral groove, 12A... Front side wall, 12B... Back side wall, 18... Open end edge part,
20...Main pipe, 21...Spiral rib, φ1 , φ2 ...Lead angle, r1 , r2 ...Curvature radius.
Claims (1)
の内周部に、そのダイスおよび素管に対して同心
状に挿入され、かつ外周面にリブ成形用の複数条
の螺旋溝が形成されたプラグにおいて、前記螺旋
溝を形作る２側壁のうち軸線方向における後方側
の側壁のリード角が、前端部側におけるよりも後
端部側で大きく設定され、かつその後方側の側壁
における外周方向への開口端エツジ部に、曲率半
径が前端部側よりも後端部側で大きく設定された
円弧状断面の面取り加工が施されていることを特
徴とするライフルチユーブ引抜加工用プラグ。 A spiral groove is inserted concentrically with the die and the raw pipe into the inner circumference of the raw pipe to be drawn while being squeezed by a die, and multiple spiral grooves for forming ribs are formed on the outer peripheral surface. In the plug, of the two side walls forming the spiral groove, the lead angle of the rear side wall in the axial direction is set larger on the rear end side than on the front end side, and the lead angle of the rear side wall in the outer circumferential direction is set larger than that on the front end side. A plug for drawing a rifle tube, characterized in that the edge of the opening end is chamfered to have an arc-shaped cross section with a radius of curvature set larger on the rear end side than on the front end side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15731684U JPH0231205Y2 (en) | 1984-10-18 | 1984-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15731684U JPH0231205Y2 (en) | 1984-10-18 | 1984-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6172310U true JPS6172310U (en) | 1986-05-16 |
| JPH0231205Y2 JPH0231205Y2 (en) | 1990-08-23 |
Family
ID=30715311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15731684U Expired JPH0231205Y2 (en) | 1984-10-18 | 1984-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0231205Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272392A (en) * | 2005-03-29 | 2006-10-12 | Sumitomo Metal Ind Ltd | Rifle tube drawing tool, and rifle tube manufacturing method using the same |
| WO2016084361A1 (en) * | 2014-11-25 | 2016-06-02 | 新日鐵住金株式会社 | Method for manufacturing rifled tube |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2228149B1 (en) * | 2007-12-26 | 2017-02-01 | Nippon Steel & Sumitomo Metal Corporation | Production method of internally-ribbed steel pipe |
-
1984
- 1984-10-18 JP JP15731684U patent/JPH0231205Y2/ja not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272392A (en) * | 2005-03-29 | 2006-10-12 | Sumitomo Metal Ind Ltd | Rifle tube drawing tool, and rifle tube manufacturing method using the same |
| JP4577611B2 (en) * | 2005-03-29 | 2010-11-10 | 住友金属工業株式会社 | Rifle tube drawing tool and rifle tube manufacturing method using the same |
| WO2016084361A1 (en) * | 2014-11-25 | 2016-06-02 | 新日鐵住金株式会社 | Method for manufacturing rifled tube |
| JPWO2016084361A1 (en) * | 2014-11-25 | 2017-11-02 | 新日鐵住金株式会社 | Rifle tube manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0231205Y2 (en) | 1990-08-23 |