FIELD: plastic working of metals, possibly manufacture of internal combustion connecting rod by closed forming.
SUBSTANCE: method comprises steps of preparing blank with two thickened end portions and one thickened portion in mean zone; deforming prepared blank in cavity of die set while making openings in thickened end portions at displacing blank metal; shaping mean portion of connecting rod and after-forming its heads. Volume of thickened portion in mean zone of blank exceeds volume of mean portion of article by value equal to half of total metal volume of blank displaced at making said openings. Gravity center of thickened portion of mean zone is spaced from axes of openings by distance inversely proportional to metal volumes displaced at forming respective openings.
EFFECT: improved quality of article.
2 dwg, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| 0 |
|
SU1669630A1 | |
| METHOD OF SINGLE-PASS PUNCHING OF ROD PARTS WITH CAVITY IN BULGE PART | 2009 |
|
RU2391172C1 |
| METHOD OF PRODUCTION OF ROD PRODUCT WITH END BUD AND END TAPERING | 2006 |
|
RU2325244C2 |
| MANUFACTURING METHOD OF ROD-SHAPED PARTS OF END-CUTTING AND CORE STAMPING TOOL | 2007 |
|
RU2359776C2 |
| DIE SET FOR FLASHLESS FORGING OF BLANKS OF HARD-TO-FORM-MATERIALS | 2003 |
|
RU2248856C1 |
| METHOD OF STAMPING PARTS | 0 |
|
SU1063519A1 |
| METHOD OF PRESSING HOLLOW ARTICLES | 0 |
|
SU565765A1 |
| METHOD FOR MANUFACTURING OF PRODUCTS FROM LENGTHY BILLETS | 2007 |
|
RU2365459C1 |
| METHOD FOR MAKING BENT PRODUCTS OF SHORT THICK-WALL TUBES IN DIE SET | 2005 |
|
RU2312727C2 |
| METHOD FOR STAMPING OF FORGED PIECES OF CROSSPIECE TYPE IN STAMP WITH HORIZONTAL CONNECTOR OF MATRICES | 2009 |
|
RU2399456C1 |
