Dealing with internal pressure in free hydraulic bulging: Predicting results with FEAFor hydraulic tube bulging, direct pressure control is the most commonly used process. Pressure control allows engineers to determine the correct capacity hydraulic system and, more importantly, prevent tube rupture. However, inflow control, or control of the volume of fluid inside the tube, theoretically could be another viable hydroforming process. Finite element analysis has shown that inflow control could allow engineers to more accurately predict deformation behavior and therefore enhance the hydroforming process.
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Maximizing your scrap's value: Diligence in preparation and tracking pays offThe more uniform and contaminant-free that scrap is when fabricators provide it to recyclers, the more fabricators can benefit. This article addresses the two principles for selling scrap to recyclers: know what you're selling vs. what you're getting paid for, and incorporate sorting & cleaning into your production stream.
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Mediating commercial conflictThis article explores some of the aspects of a commercial mediation I performed some years ago. The identities of the participants and the facts of the case have been changed to preserve the participants' privacy and the confidentiality inherent in mediation cases. This case was selected because of the intense emotional feelings that surrounded what should have been a straightforward and rather simple business arrangement. So often it seems that the feelings, emotions, and egos of the participants in a conflict can mean more than the dollars or tangible value involved.
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Taxing situation: New tax incentives aimed at helping out people like metal fabricatorsMost fabricators aren't knowledgeable about tax laws and don't have time to immerse themselves in tax updates. They're too busy on the shop floor.
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A 'bout' with the championRep. Don Manzullo speaks about taxes, steel tariffs, health care, and manufacturing's future.
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Using finite element analysis to roll-form tubesRoll forming is a common method for producing steel tubes. It is a continuous process in which a strip is guided through several sets of rolls that form the strip into the desired shape. After the final shape is achieved, tube edges are welded together to form a closed section. After the welding operation, the tube is sized through another set of rolls to obtain the required diameter.
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Managing environmental risk in tube, pipe production: What you need to know about state and federal regulations |