SU935182A1

SU935182A1 - Apparatus for cross wedge rolling

Info

Publication number: SU935182A1
Application number: SU802989786A
Authority: SU
Inventors: Владимир Иванович Садко; Валерий Александрович Клушин; Константин Демьянович Кирдун; Юлия Александровна Орлова
Original assignee: Физико-технический институт АН БССР
Priority date: 1980-10-08
Filing date: 1980-10-08
Publication date: 1982-06-15

Description

(54) УСТРОЙСТВО ДЛЯ ПОПЕРЕЧНО-КЛИНОВОЙ ПРОКАТКИ(54) DEVICE FOR CROSS-WEDGE ROLLING

1one

Изобретение относитс к обработке металлов давлением и может быть использовано при производстве изделий типа тел вращени .The invention relates to the processing of metals by pressure and can be used in the manufacture of products such as rotation bodies.

Известно устройство дл поперечно-клиновой прокатки, содержащее основание и разделительный клин, выступающий над ним по высоте, возрастающий вдоль основани и служащий дл разделени прокатываемой заготовки на две, где процесс деформации осуществл ют путем воздействи на прокатываемую заготовку инструментом одновременно в осевом и радиальном, направлени х 1.A device for cross wedge rolling is known, comprising a base and a separating wedge projecting above it in height, increasing along the base and serving to divide the rolled billet into two, where the deformation process is carried out by acting on the rolled billet simultaneously with the tool in an axial and radial direction. x 1.

Недостатком известного устройства йл етс низкое качество изготовл емых изделий , а также узость его технологических возможиостей, не позвол юща примен ть разделительные клинь дл производства изделий с поверхност ми разделени готового издели .The disadvantage of the known device is the low quality of the manufactured products, as well as the narrowness of its technological possibilities, which does not allow the use of separating wedges for the production of products with the separation surfaces of the finished product.

Известно устройство дл поперечно-клиновой прокатки, содержащее два основани , установленные с возможностью взаимного относительного перемещени с размещенными на их рабочих поверхност х разделительным клином, увеличивающимс по высо,те по направлению от верщины к основанию клина и деформирующим клином 2.A device for cross-wedge rolling is known, comprising two bases installed with the possibility of mutual relative movement with a separating wedge on their working surfaces, increasing in height, those from the wedge to the base of the wedge and the deforming wedge 2.

Недостатком известного устройства вл етс низкое качество изготавливаемых изделий .A disadvantage of the known device is the low quality of the manufactured products.

Целью изобретени вл етс повыщение изготавливаемых деталей. The aim of the invention is to increase the manufactured parts.

Поставленна цель достигаетс тем, чтоThe goal is achieved by the fact that

10 в устройстве дл поперечно-клиновой прокатки , содержащем два основани , установленных с возможностью взаимного относительного перемещени с размещенными на их рабочих поверхност х разделительным клином, увеличивающимс по высоте по нап15 равлению от верщины к основанию клина и деформирующим клином, деформирующий клин выполнен в виде имеющих общую верщину , примыкающую к основанию разделительного клина, двух рабочих клиньев с10 in the device for cross-wedge rolling, containing two bases, installed with the possibility of mutual relative movement with a separation wedge placed on their working surfaces, increasing in height along the direction from the wedge to the base of the wedge and a deforming wedge, the deforming wedge is made in the form of common vertex adjacent to the base of the separation wedge, two working wedges with

20 вогнутыми деформирующими поверхност ми расход щимис под острым углом, причем высота разделительного клина определена из соотнощени :20 concave deforming surfaces diverging at an acute angle, the height of the separation wedge being determined from the relation:

Claims

f -i-H, where h is the height of the separation wedge; H - closed height of the device. FIG. 1 shows the device, a general view; in fig. 2 - view of the lower base. In order to carry out the deformation process, the two bases 1 are installed with the possibility of mutual relative movement. A separating wedge 2 is placed on the working surfaces of the bases 1, increasing in height from the vertex to the base, and a deforming wedge 3. The closed height H of the tool is adjusted to the diameter of the rolled billet 4 subjected to separation. The deforming wedge 3 is made in the form of having a total value adjacent to the base of the separation wedge 2, two working wedges with curved deforming surfaces that diverge at an acute angle. The height of the separation wedge is limited in the range where h is the height of the separation wedge; G1 - closed device height. In section 1, the location of the separation wedge, a critical section is bent out, which deforms during the subsequent stretching of the workpiece 4. The height of the deforming wedge located in the area {g is equal to the maximum height of the separation wedge, and the workers deforming the wedge create axial plastic stretching of the workpiece angle characterizes the intensity of deformation, which increases with increasing angle. The deformation process is carried out as follows. The laminate billet 4 is inserted with separator wedges 2 and causes it to rotate. When the workpiece 4 moves in the region t, an annular groove is formed and the end surfaces are partially formed. With the further movement of the workpiece in the area tj by the working deforming wedge m 3, diverging at an acute angle, it is acted upon by axial forces that arise from the diverging concave deforming faces. Under the action of axial forces, the workpiece is stretched to a complete break into two parts. In this case, the deformation proceeds in a cross section weakened in the region Ej, along the winding. The cross section itself is not subjected to intensive cooling, since it does not contact with the tool, therefore the separation of the workpiece is not accompanied by brittle fracture. The blanks separated in this way have spherical pointed ends, and the sphere radius depends on the intensity of axial deformation. The proposed device provides an increase in the quality of manufactured products by non-violation of the conditions of flatness of the section at the point of sharpening of products. Apparatus of the Invention A device for cross wedge rolling comprising two bases mounted for mutual relative movement with a separating wedge on their working surfaces increasing in height from the direction to the base of the wedge and deforming the wedge, characterized in that the purpose of raising the quality of the parts produced, the deforming wedge is made in the form of having a common vertex, adjacent to the base of the separation wedge, two working wedges with a concave deform ruyuschimi surfaces schimis flow at an acute angle, the height of the separating wedge sootnoscheni determined from i-H, where h-height of the separating wedge; H - closed height of the device. Sources of information taken into account in the examination 1. USSR author's certificate number 478661, cl. B 21 N 1/18, 07.07.73.

2. Patent Czechoslovakia No. 151732, cl. 7 a 2, 03/29/73 (prototype).