Topic
Roller burnishing
About: Roller burnishing is a research topic. Over the lifetime, 395 publications have been published within this topic receiving 3322 citations.
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01 May 2017
TL;DR: In this article, the authors present results of experiments including application of finish machining (turning and burnishing) of samples produced with SLS/SLM, as well as influence of the sample orientation against the surface of base plate during building process (0°, 45°, 90°).
Abstract: The paper presents results of experiments including application of finish machining (turning and burnishing) of samples produced with SLS/SLM, as well as influence of the sample orientation against the surface of base plate during building process (0°, 45°, 90°) on tensile strength of the produced samples There are also presented results of microstructure examination and results of density measurements The paper also discusses the state of samples surface layer depending on the applied finishing method
Patent•
19 Jun 2019
TL;DR: In this article, a roller burnishing tool for generating a tooth structure in a wall (6.2) of a cylindrical blank (6), comprising of a clamping device for holding the blank, an annulus of disc-shaped rotatably mounted rollers, the peripheral edges of which are directed against the wall and are pressed against the same, was presented.
Abstract: The invention relates to a roller burnishing tool for generating a tooth structure in a wall (6.2) of a cylindrical blank (6), comprising the following features: • - a clamping device for holding the blank (6); • - an annulus of disc-shaped rotatably mounted rollers (1), the peripheral edges of which are directed against the wall (6.2) of the blank and are pressed against the same; • - bearing journal (2) for mounting the rollers (1); • - a stamp (9) in the inner cavity of the blank (6) having a tooth structure as a counter-mould; • - a drive for generating a relative movement in a feed direction (7) between the rollers (1) and the blank (6). The invention is characterized by the following features: • - a wedge-shaped intermediate body (11) is provided which presses the rollers (1) on the bearing journal (2) by exerting a pressure, stabilizes said intermediate body in a fixed environment, and the position of said intermediate body in the feed direction (7) is determined by at least one replaceable spacer.
Patent•
06 Oct 2011
TL;DR: In this paper, a linear motor is used to impact peening media, which has three major applications: (1) deep compression low surface work peening, (2) Almen strip arc height testing and (3) manual peening.
Abstract: This invention utilizes a linear motor to impact peening media. It has three major applications: (1) deep compression low surface work peening, (2) Almen strip arc height testing and (3) manual peening. This process differs from existing processes in that impacts are controlled in position, velocity and mass. The indentor tip may have single or multiple indentors. In its deep peening/low surface work this invention competes with processes such as Roller Burnishing, Low Plasticity Burnishing and Laser Peening. The Almen strip testing application fills a void in shot peening quality control. There are examples of Almen strips whose arc height behavior differed side to side. Others have differed between lots. Recent peening production lines have been shut down by incorrect arc heights. This invention is an alternative to manual peening processes such as Flapper peening and hand held nozzle peening.
01 Jan 2007
TL;DR: In this paper, the effect of three roller burnishing parameters, force, feed and number of passes on surface finishing, surface hardness, diameter variation and depth of the deformed layer is established.
Abstract: Roller burnishing consists in a surface deformation which improves surface hardness, surface finishing, wear resistance, fatigue strength and corrosion strength. A conventional lathe with a single roller burnishing tool was used with1045 AISI carbon steel specimens. The effect of three roller burnishing parameters, force, feed and number of passes on surface finishing, surface hardness, diameter variation and depth of the deformed layer is established. The experimentation was carried out properly lubricated. A complete factorial experimental design was applied, N = 23 The obtained information was processed with the STATGRAPHICS Plus Version 4.1 for Windows statistical software. Mathematical equations relating hardness and roughness increments and diameter diminution as a function of the used variables are presented. It is concluded that roller burnishing lowers roughness, increases surface hardness and diminishes work piece diameter, in decreasing order of influence. The highest surface hardness increase is obtained with the force and feed interaction. In roughness, the greatest effect is feed. The greatest influence on the diameter is the interaction between force and feed.
19 Sep 2017
TL;DR: In this article, a roller burnishing tool was used to investigate the microstructure, micro-hardness and the depth of penetration on Al-4% Cu at 200 °C.
Abstract: Burnishing process is a finishing operation that is widely used to increase the fatigue life, wear resistance, and micro-hardness. Roller burnishing processes was used in this work due to its low cost and its simple mechanism. The importance of his study came from the enhancement in the surface layer of Al-4% Cu alloy that translates the tensile stress to compressive stress which is save especially when the material is operated under cyclic loading. A roller burnishing tool was used to investigate the microstructure, micro-hardness and the depth of penetration on Al-4% Cu at 200 °C. It was found that the maximum penetration was 330 µm at 40 N burnishing forces and 0.08 mm/rev feed, Furthermore; the maximum micro-hardness was enhanced by 184.4% at 40 N burnishing force and 0.08 mm/rev feed.