SU1299633A1 - Ultrasound waveguide-matrix - Google Patents

Abstract

The invention relates to the field of metal forming and can be used to produce spiral profile products from low-plastic materials. This is achieved by the fact that the matrix is made with internal helical grooves and with two oppositely placed ribs on its outer surface. The side planes of the ribs are perpendicular to the lines of inclination of the grooves. Magnetostrictive transducers are installed on the corresponding edges on the side of their opposite side planes. The axes of the latter are located perpendicular to the mentioned planes and with mutual displacement relative to the axis of the ribs, a multiple of the groove of the screw grooves. Such a constructive solution allows simultaneously with the process of plastic deformation to excite torsional vibrations with magnetostrictive transducers, which helps to reduce the required working force and allows to obtain products of a helical profile from hard-to-deforming alloys. 2 Il. S sl co s co 05 oo oo

Description

The invention relates to the processing of metals by pressure and can be used to produce articles of a screw-shaped profile using the methods of drawing and pressing.

The aim of the invention is to improve the quality and expansion of technological capabilities due to the production of spiral profile products from low-plastic materials.

FIG. 1 shows an oscillating circuit for plastic deformation of the products of a spiral profile, front view; in fig. 2 - the same, side view.

The ultrasonic waveguide-matrix is made in the form of a ring 1 with internal helical grooves and two oppositely spaced ribs 2 on its

The source of ultrasonic vibrations was the ultrasonic generator UZG-10U. The product to be pressed is a drill profile with a diameter of 10 meters 12 mm. Product material steel R6M5. Waveguide-matrix had a spiral cutting points. The angle of inclination of the helical generator was 12 ° 30. The waveguides are installed in the opposite direction to each other in order to excite torsional oscillations coaxially with the helical-like forming profile at an angle of 12 ° 30 to the working line of the installation. The axis of one of the waveguides is offset by 15 mm of the exposed surface, the lateral plane is relative to the other to provide the maximum perpendicular lines of inclination to a minimum reduction of the coefficient of friction,

grooves, and on the corresponding edges of the helical spiral is 15 mm.

The sides of the opposite side planar-power ultrasonic composites system are fitted with magnetostrictive power of 10 kW. Oscillation frequency 5000-

the developers 3, whose axes are located per-25000 Hz. The oscillation amplitude is 5--20 microns.

using the device proposed by the reciprocal mixing about the axis of the Pe-25 VA allows to obtain products of a screw-forming multiple of the pitch of the screw canyok-shaped profile.

Waveguide-matrix works as follows.

After the workpiece 4 is introduced into the deformation zone of the waveguide-matrix 1, the generator of ultrasonic vibrations is turned on and simultaneously with the process of plastic deformation in the waveguide-matrix, torsional oscillations with an intensity of 0.05-0.5 mm are excited by magnetostrictive transducers 3. During the first half-period of oscillations, magnetostrictive transducers 3 cause the profile to move along a screw line, which helps to reduce the required peak force, which occurs at the beginning of the process, before it transitions to the steady state. In the second half-period of oscillation, the waveguide-matrix 1 returns to its original state due to the force of pulling and the resulting friction forces. The return of the waveguide-matrix 1 to the initial state also occurs along the helix of the profile and contributes to the reduction of the required working force.

The amplitude of the oscillations of the matrix is 0.05-0.5 mm, depending on the size of the rib projections of the profile.

Example. Two magnetostrictive transducers ПМС-15А-18 were mounted on the edges of the waveguide-matrix of the container for hydrostatic pressing.

The source of ultrasonic vibrations was the ultrasonic generator UZG-10U. The product to be pressed is a drill bit with a diameter of 12 mm. Product material steel R6M5. Waveguide-matrix had a spiral cutting points. The angle of inclination of the helical generator was 12 ° 30. The waveguides are installed in the opposite direction to each other in order to excite torsional oscillations coaxially with the helical-like forming profile at an angle of 12 ° 30 to the working line of the installation. The axis of one of the waveguides is offset by 15 mm from

Claims (1)

Invention Formula An ultrasonic waveguide matrix for plastic processing of metals, made in the form of a ring, on which at least two magnetostrictive transducers are connected, connected to a generator, characterized in that, with the aim of improving the quality in the manufacture of products with a screw shaped outer surface of low-plastic materials the matrix is made with screw grooves on its inner surface and with two opposedly placed ribs on its outer surface, the lateral planes of which are perpendicular rny lines inclination grooves, magnetostrictive transducers are mounted on the corresponding edges of opposite side of the side planes, and Transducer axis disposed perpendicularly to said planes and mutually displaced relative to the axis of the marginal edges schagu multiple helical grooves. h h VU2.1 FIG. 2