Theoretical researches on operation of isothermal distribution of tubes from difficult-to-form non-ferrous alloys in conditions of a short-term creep

Formation of bulges on hollow cylindrical products made of non-ferrous difficult-to-deform alloys

“…The upsetting process is accompanied by barrel formation [1,2,5,6]. When it comes to making critical parts from special metal materials using this method, then, when they are deformed, there is a risk to decrease the stability, as well as to significantly increase the loads on the tool [7][8][9][10][11]. Therefore, it is important to implement this process in narrow temperature and speed conditions, under which short-term creep of the material takes place [12][13][14][15].…”

Backward extrusion of pipe workpieces from non-ferrous alloys with a cone-shaped punch

“…The non-cutting shaping operation has a number of advantages, the main of which are saving in the workpiece material and favorable mode of deformation in the workpiece being formed during the forming process [5][6][7]. The process of backward extrusion of a 6Al -4V alloy pipe workpiece with a cone-shaped punch will be consired in the paper [8][9][10][11]. It is assumed that the extrusion operation considered in the article allows manufacturing the elements of fuel lines of special equipment, which are subject to high requirements on weight and strength.…”

Isothermal Crimping of Thick-Walled Shells

“…These products are very easy to manufacture. However, when it comes to hydraulic pipelines of fuel systems, it is essential to use materials resistant to aggressive effects, which are rather difficult to handle [5][6][7][8]. In this case, one of the possible options for obtaining such products is hot forming, namely crimping.…”