FIELD: plastic working of metals, possibly manufacture of rod parts with pointed end, particularly railway road spikes.
SUBSTANCE: method comprises steps of heated initial material; forming pointed portion by means of two punches and separating ready product. Pointed portion is formed between two supporting movable plates closely adjoined to lateral sides of blank. Said plates are moved to side opposite relative to pointed portion by value equal to length half of pointed end portion. Ready product is separated from initial material simultaneously with forming pointed end portion.
EFFECT: improved quality of products.
3 dwg
| Title | Year | Author | Number |
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| CUTTING OFF AND BENDING DIE SET | 1993 |
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SU1790463A3 |
