Reliability analysis of processinduced cracks in rotary. According to the swaging method and presence of mandrel, rotary swaging process of tubes includes four categories, infeed method without mandrel, infeed. Pdf with the fast development of manufacturing industry, rotary swaging technology is applied more and more widely in automobile, aviation and. Dry rotary swaging approaches for lubricant free process design. The main advantages of the process are manufacturing efficiency and flexibility, reduced part weight, reduced loss of.
The swaging machine is a rotary machine equipped with special swaging rolls. Rotary swaging is used in the manufacture of various parts for the automotive, aerospace and defense industries, for example, in the production of pipes, hollow steering columns, drive and guide shafts as well as various fasteners. Rotary swaging experiments of pure copper tubes were conducted on the developed rotary swaging machine. A swage is the shaped tool used to transform an objects shape into the desired form by bending or shaping. This article discusses the applicability of swaging and metal flow during swaging. Rotary swaging forming process of tube workpieces core. Swaging is the actionoriented process for shaping a swage. Energycontrolled rotary swaging process for tube workpiece.
This video demonstrates how a swaging machine converts round tube to a conical tube. The diameter of the workpiece is reduced incrementally by oscillating movement of the tools. Pdf generation of residual stresses in rotary swaging. Infeed rotary swaging is a noncutting chipless cold forming process and has an important field. What is swaging process working of swaging machine. In this paper, a rotary swaging process utilizing energycontrolled method is proposed, which can improve the. Pdf rotary swaging forming process of tube workpieces.
Rotary swaging technology is mainly used to fabricate tubes, rods or act as preprocessing of other process. The animation below shows the principle of operation of a classical rotary swager. For instance, it can conduct necking of the tube ends before tube hydroforming process and internal gear machining process. This process is usually called rotary swaging or radial forging. What is swaging process working of swaging machine what is swaging operation. Rotary swaging forming process of tube workpieces sciencedirect. Rotary swaging is an incremental cold forming process and allows for the cost effective manufacture of cylindrical light weight components such. Rotary swaging, also formerly known as swaging, is process for precision. Therefore, the infeed swaging process is often utilized at the occasion where the workpiece is necked from one end. Swaging virtual labdayalbagh educational institute.
Dry rotary swagingapproaches for lubricant free process. The two process variants differ particularly in the direction of the feed. Mechanics of the rotary swaging process journal of. The recess swaging process is often used to reduce diameter at a certain position of the workpiece or form a concave profile. A theory of the mechanics of the rotary swaging process is developed. Rotary swaging is a highperformance forging process for hollow and solid parts with an elongated axis. Generation of residual stresses in rotary swaging process. Swaging is used in the metalworking field, known as metallurgy, to serve a variety of purposes. Rotary forging rotary forging, or orbital forging, is a twodie forging process that deforms only a small portion of the workpiece at a time in a continuous manner. For the preform design of a swaged shell nose part by a rotary swaging process, finite element simulation and experimental verification have been carried out to obtain a shell body nose of desired quality. The rotary swaging process is a cold working process used to reduce the diameter, produce a taper or add point to a round workpiece.
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