Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 2017

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: injection forging

Sortuj według:

Ogranicz wyniki do:

Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve

Winiarski G., Gontarz A.

Archives of Metallurgy and Materials

2017

Vol. 62, iss. 2A

495--499

The paper presents a new metal forming process for producing two-step external flanges on hollow parts. With this method, the flange is extruded by a movable sleeve, which moves in the opposite direction to the punch. This reduces the phenomenon of buckling of the tube wall, which allows extruding flanges with relatively large volumes. The new method was applied to produce a two-step flange on the end of a tubular billet made of 6060 aluminum alloy. This cold metal forming process was designed based on numerical simulations and experimental tests. The effect of the basic technological parameters on metal flow was investigated and limitations of the process were identified. The experimental results confirmed the possibility of forming a two-step flange with a diameter that is approximately twice as big as the external diameter of the tubular billet.

The influence of tool geometry on the course of flanges radial extrusion in hollow parts

Winiarski G., Gontarz A., Dziubińska A.

Archives of Civil and Mechanical Engineering

2017

Vol. 17, no. 4

986--996

In this paper the different methods of hollow parts with flange manufacturing are presented. The results of theoretical–experimental research on radial extrusion of hollow parts with flanges are shown. In the research the pipe parts form 6060 aluminum alloy formed in ambient temperature were used. The influence of tool geometry in forming zone was investigated. Experimental research was made in special equipment placed into workspace of laboratory testing machine. Numerical simulations were made by means of Deform-3D software. In the results, the distributions of stress, strains, Cockroft–Latham criterion and loads are presented.