SU1258676A1 - Method of making regular microrelief - Google Patents

Description

.

The invention relates to the treatment of flat surfaces by methods of surface plastic deformation, in particular, to finishing processing of flat surfaces of parts such as guide machines and devices.

The aim of the invention is to improve the quality of processing by creating a regular hexagonal microrelief.

FIG. 1 shows a cell pattern for a regular microrelief; in fig. 2 - a device for the formation of a regular microrelief, general view; in fig. 3 - view A on (the blank is conventionally not shown). .

For each double stroke of a flat multi-ball single-sided tool, when struck simultaneously, all the balls arranged with a step a in a plane parallel to the plane of the workpiece, as a result of plastic deformation, a series of spherical prints O, -A ,, B, on distance equal to a from each other. When the workpiece is moved at a constant speed V in the direction at an angle J to the formed, a series of prints 0, A, B, as a result of subsequent blows on the surface being worked

rows of subsequent ridges O

g 4 j

B as well as 0, Aj, B, etc. Overlaying each other, the prints form hexagonal cells, provided

Y arctg

i;;: a-cos Y

41 2 (p-0.5)

p-0,5

which follows from the analysis of geometrically: x constructions in figure 1 (in this case, P 2 means the number of double tool strokes necessary for imposing prints from two adjacent balls).

The method can be implemented on equipment with a drive of translational motion (turning, milling machines, etc.) using the drive 1 of the reciprocating movement of the tool 2 in the form of core 586762

Mounts with 3 balls installed in a row in the separator 4. The workpiece 5 at the same time performs translational motion perpendicular to the plane on the

5 figure 2.

From the actuator 1, reciprocating movement is reported to the flat multi-ball tool 2, as a result of which the balls 4 are inserted into the surface layer of the workpiece, the surface being hardened and leaving prints in the form of spherical holes with step a (Fig.) For each stroke. At the same time, the workpiece 5 is communicated in translational motion parallel to the plane of the tool 2 at a speed VB direction at an angle to the row of forming prints.

Example. A flat microrelief in the form of tightly packed hexagonal cells is formed on a flat surface of a guide from SCH 15-32. As deformchik balls take balls with a diameter of 1 mm.

25 in the separator in a row set eight balls close to one another. The tool is installed in such a way that the row of balls is with the longitudinal axis of the workpiece, the angle I is 30 degrees. An electromagnetic vibrator with frequency f 50 and impact force P 300 I is used as a drive for the reciprocating motion of the instrument.

35 The workpiece relative to the vibrator is moved with a speed of V 1732 mm / / min. In a single pass, a regular microrelief is created over the entire width of the guide 5 mm. Mode Options

40 treatments are calculated according to the above ratios with n 2.

The use of the proposed1 ”) method in comparison with the known method provides the possibility of creating a“ high performance properties due to the strengthening effect on the treated surface with the formation of a regular microrelief in the form of tightly packed cells, hexagonal shape, providing the greatest 5 K1 durability and the possibility of forming a regular microrelief on narrow and abutting dovetail-type surfaces of guide machines and devices.

45

50

 one

g 3

/

FIG. 2

3

Editor G. Volkova

Compiled by V.Kuznetsov Tehred MiHodanich

5073/17 Circulation 740.

VNIIPI CGCP State Committee

for inventions and discoveries - P3035, Moscow, Zh-35, Raushsk nab,

Sub

Production

printing company, Uzhgorod, Projecto st., 4

Corrector; M.Sharoshi

".E .-" - ".

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Claims (1)

METHOD FOR FORMING REGULAR MICRO-RELIEFS, including translational movement of the workpiece at a certain speed and the formation of prints on the surface to be processed by reciprocating motion of a number of balls perpendicular to the indicated surface, characterized in that, in order to improve the quality of surface treatment by creating a micro · hexagonal relief on them forms reciprocates a number of balls reported simultaneously, and the workpiece is moved at an angle J = arctg J (n = 0 ~ 5) ~ ^obra_ binder ^{to a number} of echatkov, the translational velocity V of the workpiece is determined from the relation _m. fa- cozy V w :::::::::::: p - 0.5 ’where f is the frequency of the reciprocating motion; а - step of prints formed about in one stroke; η is an integer other than zero. FIG. 1 1258676 A1 1258676 2