SU1058765A2 - Deforming tool - Google Patents

Deforming tool Download PDF

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Publication number
SU1058765A2
SU1058765A2 SU823495981A SU3495981A SU1058765A2 SU 1058765 A2 SU1058765 A2 SU 1058765A2 SU 823495981 A SU823495981 A SU 823495981A SU 3495981 A SU3495981 A SU 3495981A SU 1058765 A2 SU1058765 A2 SU 1058765A2
Authority
SU
USSR - Soviet Union
Prior art keywords
tool
indenters
wedge
deforming tool
hexagonal
Prior art date
Application number
SU823495981A
Other languages
Russian (ru)
Inventor
Дмитрий Григорьевич Громаковский
Василий Зотович Жарков
Владимир Александрович Костин
Original Assignee
Куйбышевский ордена Трудового Красного Знамени политехнический институт им.В.В.Куйбышева
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Куйбышевский ордена Трудового Красного Знамени политехнический институт им.В.В.Куйбышева filed Critical Куйбышевский ордена Трудового Красного Знамени политехнический институт им.В.В.Куйбышева
Priority to SU823495981A priority Critical patent/SU1058765A2/en
Application granted granted Critical
Publication of SU1058765A2 publication Critical patent/SU1058765A2/en

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Abstract

DEFORMING TOOL on author. St. No. 645824, characterized in that, in order to improve quality by eliminating tool slippage when rolling, on the side edges of the hexagonal profile indenters, wedge-shaped projections are made in the direction toward the center of said profile. (L ate 00 O5 SP

Description

The invention relates to mechanical engineering and can be used in various industries in the field of hardening trunks and their surfaces in machine parts. According to the main author. St. No. 645824 is known a deforming tool for hardening the surface layer of parts made of brittle materials and alloys, provided with additional indenters in the form of hexagonal protrusions, hunt for elementary indenters 1. The deforming tool is a rolling roller made of steel SHKh-15, HRC 60, with a hexagonal size cells, 5-4 mm, outer diameter of the roller 21 mm, inner diameter 12 mm and a width of 12 mm. When working as a deforming tool, a relative movement of the tool and part occurs, which creates a rolling motion, while the indenters squeeze out a grid of channels on the reinforced surface, creating counter-shear deformations. However, this deforming tool does not provide sufficient quality and wear resistance of rubbing pairs. ; The value of the invention - quality improvement | hardening the surfaces by eliminating the slipping of the tool when rolling. : The goal is achieved by the fact that the instrument containing hexagonal profile indenters on the working surface is provided with wedge shaped projections; located on the side face m hexa | oyaly indenters. Equipping hexagonal profile indenters with wedge-shaped protrusions improves hardening quality and wear resistance of rubbing pairs by distributing the directions of counter-shear deformations, achieving optimal tangential stresses in the surface of the parts, and eliminating tool slippage when the surfaces of the parts are rolling around. FIG. 1 shows an instrument, a general view; in fig. 2 - location of the indentors of the hexagonal profile and the projections of the wedge-shaped form on them; in fig. 3 - surfaces of parts hardened by deformation forming the surface layer using the proposed tool, the general view. The deforming tool has indenters of hexagonal profile I and 2 and lateral faces of indenters with wedge-shaped protrusions 3. When working, the deforming tool, running around the part, squeezes channels 1 with step S on the strengthened surface, carrying wedge-shaped protrusions 3 and grooves 2 on the side faces. On the elementary areas of the parts surfaces, this creates a higher level of tangential residual 04Htix stresses due to the distribution of the main direction of shear deformation into three components, which increases the area of the hardened surface along the lateral edges of the elementary areas. This means that when a single hexagonal platform is hardened, the indenters I, 2 and protrusions 3 are simultaneously pressed into the surface. Part of the shear deformation is oriented with wedge-shaped indenters (protrusions) in two additional directions, which increases the reinforced contour area on the elementary hexagonal areas and increases the wear resistance of hardened parts. In addition, due to the wedge-shaped protrusions during the rolling of the surfaces of the parts (extruding the hexagonal relief), the tool meshes with the surface to be machined, as a result of which the tool slips against the part, which improves the quality of the hardened surface. The wedge-shaped protrusions are made along the entire height of the side faces of the elementary platforms, in increments of (0.1-0.15) S and a corner at the apex of 90-100 °. Comparative tests of the wear resistance of bronze parts in sliding bearings strengthened with the proposed tool and prototype tools show that after the parts are strengthened with the proposed tool, the wear resistance and friction surfaces increase by 15-20% due to an increase in microhardness on the side faces and on the elementary areas mirror , reduction of the shcheroKhovatost of the front; the slits inside the channels, increase the lubricity of the junction of the associated part. Comparative analysis of deforming tools shows that the use of the proposed deforming tool for strengthening friction surfaces will improve the quality of hardening, hardening of the surface and its wear resistance.

Claims (1)

  1. DEFORMING TOOL by ed. St. No. 645824, characterized in that, in order to improve the quality by eliminating tool slippage during rolling, wedge-shaped protrusions are made on the lateral faces of the hexagonal profile indenters located in the direction to the center of the said profile.
SU823495981A 1982-10-10 1982-10-10 Deforming tool SU1058765A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU823495981A SU1058765A2 (en) 1982-10-10 1982-10-10 Deforming tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU823495981A SU1058765A2 (en) 1982-10-10 1982-10-10 Deforming tool

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU645824 Addition

Publications (1)

Publication Number Publication Date
SU1058765A2 true SU1058765A2 (en) 1983-12-07

Family

ID=21030652

Family Applications (1)

Application Number Title Priority Date Filing Date
SU823495981A SU1058765A2 (en) 1982-10-10 1982-10-10 Deforming tool

Country Status (1)

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SU (1) SU1058765A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080081208A1 (en) * 2006-09-29 2008-04-03 Prevey Paul S Method and apparatus for improving the distribution of compressive stress
US9789582B2 (en) 2012-07-05 2017-10-17 Surface Technology Holdings Ltd. Method and compression apparatus for introducing residual compression into a component having a regular or an irregular shaped surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Авторское свидетельство СССР № 645824, кл. В 24 В 39/00, 1977 (прототип). *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080081208A1 (en) * 2006-09-29 2008-04-03 Prevey Paul S Method and apparatus for improving the distribution of compressive stress
US9789582B2 (en) 2012-07-05 2017-10-17 Surface Technology Holdings Ltd. Method and compression apparatus for introducing residual compression into a component having a regular or an irregular shaped surface

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