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Ultrasonic plastic welding is the joining or reforming of thermoplastics through the use of heat generated by the high frequency mechanical movement. It is achieved by converting high frequency electrical energy into high frequency mechanical motion. This mechanical movement, together with the applied force, creates frictional heat on the mating surfaces of the plastic components (joint area) so that the plastic material melts and forms a molecular bond between the parts. The following drawings illustrate the basic principle of ultrasonic weldi ....etc

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This study investigates and compares fatigue behavior of forged steel and powder metal connecting rods. A literature review on several aspects of connecting rods in the areas of load and stress analysis, durability, manufacturing, and optimization is also provided. The experiments included strain-controlled specimen testing, with specimens obtained from the connecting rods, as well as load-controlled connecting rod bench testing. Monotonic and cyclic deformation behaviors, as well as strain-controlled fatigue properties of t ....etc

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INTRODUCTION

Tribology is defined as science and technology of interacting surfaces in relative motion and of related subjects and practices. However the subject Tribology generally deals with the technology of lubrication, friction control and wear prevention of surfaces having relative motion under load.
The two main constituents of Tribology are friction and wear, which controlled and reduced, automatically increases the service life of machine elements.
In past few years, wood iron and skin have been used as journ ....etc

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I am a welding methods specialist and in need of Aluminium welding defects causes and remedies PPT ....etc

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to get information about the topic ultrasonic metal welding full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-ultrasonic-metal-welding?pid=33399&mode=threaded ....etc

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ABSTRACT

Ultrasonic metal welding is a solid state welding process, and here ultrasonic vibrating motion is used to join two materials. The two work pieces are held in between the anvil and sonotrode. The work piece on the anvil is hold stationary while the other part is moved to and fro due to the vibrating effect of the sonotrode. This movement the oxide disperses layer in between them and atoms of the work pieces are diffused from one part to another. When vibration is stopped a pure metallurgical bond is obtained.
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To get full information or details of ultrasonic metal welding please have a look on the pages

http://seminarsprojects.net/Thread-ultrasonic-metal-welding?pid=33399&mode=threaded

http://seminarsprojects.net/Thread-welding-of-metals

if you again feel trouble on ultrasonic metal welding please reply in that page and ask specific fields in ultrasonic metal welding ....etc

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