Design and Manufacture of the Apparatus for Continuous Hydrostatic Extrusion-Drawing Process
|Keywords:||靜水壓擠製;擠製-抽拉;高壓盛錠筒;線材擠製;hydrostatic extrusion;extrusion-drawing;high pressure container;wire extrusion|
Hydrostatic extrusion is a process under which a high hydrostatic pressure is directly used to push the material through extrusion die. High extrusion ratio, low friction, and high quality for products are the advantages for this process. The purpose of this research is thus to design and construct a new apparatus for hydrostatic extrusion-drawing process. After the apparatus was designed and constructed completely, extrusion experiments on aluminum A6061 with extrusion ratio of 20.25 was first carried out to verify the capability of this hydrostatic extrusion device. Fine wires of 0.5mm diameter were also extruded with this apparatus using coiled wire billets. Furthermore, a series of wires hydrostatic extrusion-drawing experiments were conducted. By collecting and analyzing the results of these experiments, several characteristics of wire extrusion-drawing were obtained, which include the constant summation of corresponding hydrostatic pressure value and drawing stress. Finally, the research results are expected to promote the domestic utilization of hydrostatic forming processes.
|Appears in Collections:||Thesis|