Roller burnishing

About: Roller burnishing is a research topic. Over the lifetime, 395 publications have been published within this topic receiving 3322 citations.

Device and method for electromechanically-assisted roller burnishing

Abstract: The invention relates to a device and method for electromechanically roller burnishing a surface of a workpiece, in which precisely one current-guiding roller burnishing element for roller burnishing and one separate electrical contact element are used and, as the roller burnishing element is moved on the workpiece surface, said electrical contact element is guided thereafter such that a current path of a constant length is directed through the workpiece as roller burnishing takes place. The invention allows, in a cost-effective manner, a high surface quality to be achieved as well as a precisely-adjustable microstructural alteration to the upper layers of the workpiece.

Improvement of Roundness of Cylindrical Parts Using Hybrid Electrochemical Smoothing and Roller Burnishing Process

Abstract: A novel finishing process, which integrates the merits of electrochemical smoothing (ECS) and roller burnishing (RB) is proposed in this research for improving the roundness error of cylindrical parts. This process can be used after various turning operations. Through simple equipment attachments, electrochemical smoothing-roller burnishing (ECS-RB) can follow the machining process on the same turning machine. To explore the optimum combinations of the ECS-RB process parameters in an efficient and quantitative manner, the experiments were designed on the basis of the response surface methodology (RSM) technique. The effect of ECS-RB parameters namely, burnishing force, applied voltage, interelectrode gap and workpiece rotational speed on the roundness error was studied. Experimental results indicate that the combined process effectively improves the roundness error. Therefore, the combination of ECS and RB is a feasible process by which it is possible to minimize geometrical errors.

Dual roller burnishing system

Abstract: A tool for boring, skiving, and roller burnishing the interior of a cylindrical workpiece utilizes a dual roller burnishing system incorporated into the tool. The tool includes a drive tube assembly (24-224) which attaches to a drive member for rotating the tool. A boring assembly (142) at the forward end of the tool includes cutting blades (204) oriented to bore the cylinder to a first diameter. A skiving assembly (16) is located rearward of the boring assembly and includes retractable knives (18) for skiving the cylinder to a second diameter greater than the first. A first burnishing roller set (22-30) is provided rearward of the skiving assembly and a second burnishing roller set (222-230) is located rearward of the first roller set, to finish burnishing the cylinder.

Method of manufacturing a rotary shaft

Abstract: Three solid round bars are prepared as auger members, respectively as a main body member, an upper shaft member, and a lower shaft member. End surfaces of the members are coaxially joined together by friction welding. Turning machining is then performed by using a lathe, forming a helical blade, a spline, and the like. In addition, burnishing is performed on a corner portion that includes an outer circumferential edge of a joining surface where friction welding is performed, and another corner portion that includes an outer circumferential edge of another joining surface where friction welding is performed. The burnishing is performed by pressing a roller, which is freely rotatable about a roller support shaft center of a Superoll, toward the corner portions of the rotating auger. Roller burnishing may also be performed two times on the same location, with a predetermined time interval therebetween.