FIELD: process engineering.
SUBSTANCE: proposed method comprises making flat work pieces, jointing them together rigidly and stretching uniformly produced semi-finished auger along lengthwise axis. Said work pieces are made from isosceles-trapezoid-shaped plates rigidly jointed together on sides to form open-end washer in the form of right polygon.
EFFECT: lower metal input.
1 dwg
| Title | Year | Author | Number |
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