Journal of Applied Metalworking
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Roll pressure modeling of multipass warm rolling of carbon steel
Journal of Applied Metalworking - Tập 3 - Trang 264-271 - 1984
For various reasons, ferrous warm rolling has been considered in the last 15 years to be a potentially valuable manufacturing process. However, no systematic approach has been undertaken to assess intrinsic manufacturability as indicated by such parameters as roll separating force and energy or power consumption. The purpose of this investigation is to characterize experimentally the effect of var...... hiện toàn bộ
Spinning of tubes: A review
Journal of Applied Metalworking - Tập 2 - Trang 211-223 - 1982
Spinning of tubes involves progressive localized deformation of a cylindrical ring between a rotating mandrel and a roller. The resultant product is a tube whose wall thickness is determined by the gap between the mandrel and roller. The process is also known as shear forming, flow turning, spin forging, rotary extrusion, roll extrusion, flow forming, hydrospinning, rotoforming, and floturning. Sp...... hiện toàn bộ
CAD/CAM of streamlined extrusion dies
Journal of Applied Metalworking - Tập 4 - Trang 43-49 - 1985
A new concept has been developed for the design of streamlined dies for the extrusion of “difficult-to-extrude” metal-matrix composite materials and P/M alloys. Based on this concept, CAD/CAM packages have been developed to facilitate the design and manufacture of these complex dies. The packages are interactive and user friendly and can help the user in arriving at an optimum design with relative...... hiện toàn bộ
Improved hot workability by control of non-metallic inclusions in steels
Journal of Applied Metalworking - Tập 2 - Trang 38-44 - 1981
The hot workability of two types of alloy steels at two different levels of cleanliness has been assessed using hot torsion tests. It is found that the hot ductility and the peak ductility temperatures improve with improved cleanliness. However, the high temperature deformation mechanism appears to be insensitive to the cleanliness of the steels studied in this investigation.
Urethane drawstrips: A new method to control sheet metal flow during forming
Journal of Applied Metalworking - - 1981
The effect of hot-dipped galvanized coating on the edge and plane strain formabilities of high strength steels
Journal of Applied Metalworking - Tập 4 - Trang 176-182 - 1986
Galvanized steels have been increasingly used to improve the corrosion resistance of automobiles, particularly of corrosion critical components. In addition to the studies of the effect of coating on weldability and paintability, a further understanding of the effect of galvanized coating on the formabilities of steel is needed. Two forming tests, i.e., limiting dome height and hole expansion, wer...... hiện toàn bộ
An assessment of powder metallurgy today and its future potential
Journal of Applied Metalworking - - 1984
New drawbead concepts for sheet metal forming
Journal of Applied Metalworking - Tập 2 - Trang 185-192 - 1982
New drawbead concepts have been developed which can increase the drawbead restraining force and also allow rapid adjustment of the force. Urethane inserts are added in the groove opposite the bead of a conventional drawbead to increase the deformation and friction. A flat-bottom drawbead design in conjunction with a urethane insert can increase the deformation component about one-third compared to...... hiện toàn bộ
The influence of microstructure on the formability and fracture of an aluminum-copper alloy (2036)
Journal of Applied Metalworking - Tập 1 - Trang 24-33 - 1981
The effect of aging on strain hardening and fracture in an aluminum copper alloy (2036) in sheet form was investigated. Two distinct types of strain hardening behaviour were identified. In the peak-aged and over-aged conditions, a high initial hardening rate was observed that was dependent upon the distribution of precipitates. The initial period was followed, after about 10 pct extension, by a lo...... hiện toàn bộ
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