draw ring

draw ring

[′drȯ ‚riŋ]
(metallurgy)
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To enter this super free prize draw ring the following hotline number
Around since the 1940s, hydroforming replaces conventional matched die forming with a draw ring and a male punch that offers metal fabricators the flexibility to produce either low-volume or irregularly contoured parts.
The press uses a male die corresponding to the shape to be formed and a female called a draw ring thast is surrounded by a bladder that fills with oil.