Hot forging of fittings made from seamless pipe
| Autor: | M. P. Guerrero-Mata, C. Lázaro-Naranjo, Rafael Colás, J. Martínez, Peter Fodor |
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| Rok vydání: | 2004 |
| Předmět: | |
| Zdroj: | Ironmaking & Steelmaking. 31:319-324 |
| ISSN: | 1743-2812 0301-9233 |
| Popis: | The hot forging of connecting fittings known as tees is analysed and described in the present paper. These parts are forged in a vertical press from preforms cut from seamless pipes in which a hole, which will be the third mouth, is cut with an acetylene torch. The process requires that the portion of the preform to be forged is hot enough to allow the flow of material, while the rest of the piece is able to resist the pressure without bending. The experimental work was conducted using instrumented preforms by the insertion of eight type K thermocouples at different portions of the body to record the thermal cycle; a grid was inscribed on the surface of the preforms to compute the various strain components. The pieces were heated and, before forging, were subjected to the standard procedure of immersing the portion opposite to the third mouth in water at room temperature. An attempt to forge one piece directly from heating, without immersion in water, was made, but this was a failure as the materi... |
| Databáze: | OpenAIRE |
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