The thickness effect is the phenomenon that the fatigue strength of a welded connection decreases when the thickness of load carrying plate increases. The thickness effect is observed in details where the fatigue crack initiation takes place at the weld toe. The hot spot stress approach is a fatigue design approach based on the structural stress obtained from Finite element Analysis (FEA) resul...

Various welding methods are used to produce non-detachable joints of plastic parts. These friction (FW), friction-stir (FSW), ultrasonic welding, chemical bonding, and hot plate welding. Rotary (RFW) method, which is one the FW methods, generally in joining filter parts water treatment devices. After RFW processes, semi-melted accumulations tend occur on interior surfaces In some cases, particl...

At the joining of non-removable plastic parts, methods such as friction welding, friction-stir ultra-sonic chemical joining, hot-plate welding use. Rotary which is one methods, generally used for filter parts water treatment devices. After rotating semi-melted agglomerations are formed in inner parts. To prevent accumulation, weld joint profile design was developed ABAQUS program previous study...

OBJECTIVES CO poisoning has been a serious industrial hazard in Japanese workplaces. Although incomplete combustion is the major cause of CO generation, there is a risk of CO poisoning during some welding operations. The aim of the present study was to evaluate the generation rate of CO from CO2 arc welding under controlled laboratory conditions and estimate the ventilation requirements for the...

In modern design of automobile car bodies reduction in weight and maximization of the structural stiffness and passive safety are the main challenge. The ‘Tailored Blank’ has contributed to achieve a significant weight reduction in recent years. The single flat sheets are joined by Laser Welding in butt configuration without filler wire. Usually the quality of the welds is assured by precise pr...

Power input to the arc in gas metal arc welding controls both the metal transfer process and the base-plate heating process. It would be advantageous to decouple these processes. Methods to achieve this decoupling are discussed. Pulsed-power welding is widely used, but only decoupling can be achieved. More complete decoupling may be obtained by using independent power inputs to the system. Seve...

abstract anti-nociceptive activity of aerial parts of phytolacca americana were investigated, using the hot plate method in mice. results of the present study showed that the aqueous methanolic extract of aerial parts of p. americana produced a statistically significant increase in pain threshold after 30 min, in comparison with the control, at adose of 190 mg kg-1 (p<0.001). the activity was c...