FIELD: process engineering.
SUBSTANCE: invention relates to metal forming. Proposed method comprises cutting the billet, direct extrusion of rod, pre-forming the head and final head heading. In rod direct extrusion taper section is formed, its length not exceeding 1.2 diameter of its larger base equal to billet diameter. Then, end face section is reduced to sphere diameter equal to half the semi-sphere diameter on end face of finished billet. Simultaneously, taper is formed with length equal to final length of finished part and rod face is chamfered. Now, head made up of two different-diameter semi-spheres is formed.
EFFECT: higher strength of tool and quality of produced articles.
1 dwg
| Title | Year | Author | Number |
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| 0 |
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SU464374A1 |
