JPH0229430U - - Google Patents
Info
- Publication number
- JPH0229430U JPH0229430U JP10761888U JP10761888U JPH0229430U JP H0229430 U JPH0229430 U JP H0229430U JP 10761888 U JP10761888 U JP 10761888U JP 10761888 U JP10761888 U JP 10761888U JP H0229430 U JPH0229430 U JP H0229430U
- Authority
- JP
- Japan
- Prior art keywords
- punch
- chamfering
- mold
- sintered part
- lower punch
- 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 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の面取り用金型を示す模式断面
図、第２図は面取りした焼結部品を示す模式断面
図、第３図及び第４図はバツクアツプ部材の形状
を示す模式断面図、第５図は実施例で調べた歯車
を説明する模式断面図、第６図は歯車の薄肉歯形
部分を金型で面取りした場合を説明する模式図、
第７図及び第８図は金型成形による面取りのテー
パ量と歯車面取り量の差を示すグラフ図、第９図
は従来技術の金型を示す模式断面図、第１０図は
薄肉部品の面取り後のテーパ変形を説明する模式
図、第１１図は薄肉歯車の面取り量の不均一を説
明する模式図である。
１１…上パンチ、１２…上バツクアツプ部材、
１３…下パンチ、１４…下バツクアツプ部材、１
５…焼結部品、１５ａ…薄肉部、１５ｃ…面取り
、１１ａ，１３ａ…面取り成形用斜面。
FIG. 1 is a schematic sectional view showing a chamfering mold of the present invention, FIG. 2 is a schematic sectional view showing a chamfered sintered part, FIGS. 3 and 4 are schematic sectional views showing the shape of a back-up member, FIG. 5 is a schematic cross-sectional view illustrating the gear examined in the example, and FIG. 6 is a schematic diagram illustrating the case where the thin tooth profile portion of the gear is chamfered with a mold.
Figures 7 and 8 are graphs showing the difference between the taper amount of chamfering and the amount of gear chamfering by mold forming, Figure 9 is a schematic cross-sectional view of a conventional mold, and Figure 10 is chamfering of thin-walled parts. FIG. 11 is a schematic diagram illustrating the subsequent taper deformation, and FIG. 11 is a schematic diagram illustrating non-uniform chamfering amount of the thin-walled gear. 11... Upper punch, 12... Upper backup member,
13...Lower punch, 14...Lower backup member, 1
5... Sintered part, 15a... Thin wall portion, 15c... Chamfer, 11a, 13a... Slope for chamfering forming.
Claims (1)
内面の周端部にパンチ外に向つて拡がる面取り成
形用斜面を有し、焼結部品の薄肉外周部の外側角
部を面取りする金型において、上パンチ及び下パ
ンチの該一方又は両方の内面側に、面取りすべき
薄肉外周部の内側をバツクアツプする部材を設け
たことを特徴とする焼結部品の面取り用金型。 In a mold for chamfering an outer corner of a thin outer periphery of a sintered part, the upper punch and the lower punch have a chamfer forming slope extending outward from the punch on the peripheral edge of the inner surface of the upper punch and the lower punch. A mold for chamfering a sintered part, characterized in that a member is provided on the inner surface of one or both of the punch and the lower punch for backing up the inner side of the thin outer peripheral part to be chamfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10761888U JPH0623531Y2 (en) | 1988-08-17 | 1988-08-17 | Mold for chamfering sintered parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10761888U JPH0623531Y2 (en) | 1988-08-17 | 1988-08-17 | Mold for chamfering sintered parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0229430U true JPH0229430U (en) | 1990-02-26 |
| JPH0623531Y2 JPH0623531Y2 (en) | 1994-06-22 |
Family
ID=31342194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10761888U Expired - Fee Related JPH0623531Y2 (en) | 1988-08-17 | 1988-08-17 | Mold for chamfering sintered parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0623531Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007532320A (en) * | 2004-04-13 | 2007-11-15 | アキュメント インテレクチュアル プロパティーズ エルエルシー | Powdered metal multilobe tool and method of making |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005137111A (en) * | 2003-10-30 | 2005-05-26 | Yaskawa Electric Corp | Corner beveling method at teeth end part of stator core for motor |
-
1988
- 1988-08-17 JP JP10761888U patent/JPH0623531Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007532320A (en) * | 2004-04-13 | 2007-11-15 | アキュメント インテレクチュアル プロパティーズ エルエルシー | Powdered metal multilobe tool and method of making |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0623531Y2 (en) | 1994-06-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |