12 Overview of Resistance Welding Introduction In simplest terms, welding is a process by which two or more pieces of metal are joined by applying heat and pressure. Back in the good old days, blacksmiths and other crafty people would heat metals in a furnace and then weld them by hammering the red-hot metals together. By hammering the metals as they cooled, the weld would be made stronger. This heating-and-hammering method is known as forge welding. While forge welding worked
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• The maintenance unit for power supply will be present to keep a watch on the activities of the metal processing industry, because the fuel is mainly required in this sector of work. Electricity generated by the solar disc shall keep the rotation going on and also all the other places where electricity is required. • The maintenance unit for importations
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The Mongols did more cultural destruction. And there don't put some changes in culture.The Mongols were barbarians since in their battalions if a group of 3 or more soldiers fled from battle they were executed. Furthermore, if 10 escaped, the rest of the battalion were executed. Furthermore, a technique that they had was to place their children and wives at their disposal so that the enemy would think that there were many people. In addition to this, they make captives and people from other parts
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of atoms is perfect or extends throughout the entirety of the specimen without interruption. b) Polycrystalline solid : a collective aggregate of many crystals separated by well defined boundaries. CRYSTAL STRUCTURES • As a general rule, most metals are crystalline, while ceramics and polymers may be either crystalline or non-crystalline. Differences between crystalline and non-crystalline solids Characteristic Atomic arrangements Crystalline Regular and orderly manner in all three
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UNDERSTAND CLOGGING IN IF GRADE AND SUGGEST COUNTERMEASURES TO MINIMIZE IT A Project Report Submitted in Fulfilment of the Requirements for Summer Training By ABHIJEET DASH (VT20132141) Metallurgical and Materials Engineering National Institute of Technology, Rourkela Under the Guidance of Mrs Shainu Suresh Sr. Manager, Steel Technology and Casting Flat Product Technology Group, Tata Steel Ltd. Jamshedpur i|Page DECLARATION I hereby declare that the project work entitled “Understand
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Lasers in Micro-manufacturing Laser processes have continued to be used for a considerably long time for specific micro-manufacturing processes. This is because there have been several decades of such applications in development through which conventional manufacturing approaches could not satisfy the major demands relating to accuracy and flexibility. On the other hand, the outstanding share of micro applications across the entire laser market has extensively been a minor segment through
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CHEMESTRY LAB SUBJECT: CHEMESTRY TEACHER: MISS MUGANAMBUGA STUDENT: Levi Blaides TITLE: Investigating the properties of ionic and covalent substances INTRODUCTION: Certain characteristics such as solubility polar and non-polar solvents, melting point and conduction of electricity can be used to distinguish between ionic and covalent substances. AIM: To determine whether a substances is ionic or covalent in nature by observing its melting point, solubility and conductivity. APPARATUS/MATERIALS
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The first step for a designer is to determine the most suitable joining technique. The following variations are possible: Ultrasonic Welding Ultrasonic Swaging, Staking, Spot-Welding Ultrasonic Insertion Ultrasonic Welding The molten material builds at the contact area of the energy director between the to be welded parts. The ultrasonic waves are transferred through the part to the joint area. Common "standard" joint designs include: Basic 90 Degree Energy Director
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A Report on: ** Industrial Visit** Silvassa, Dadra and Nagar Haveli (30th November 2012 & 1st December 2012) By, Omkar Vartak Roll No: PG12089 Division - B PGDM (e-Business) : 2012-14 MET – ICS Presented to: Prof. V. Naik Report - Industrial Visit- Industry number 1 (Bombay Rayon Fashion Ltd)- The first industry we visited on our industrial visit was Bombay Rayon. This industry produced products such as fabrics and apparels. Rayon is one of the most
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It’s a Fragment from the thigh bone of a young cave bear, and proposed that this had been crafted as a flute by the prehistoric man. When uncovered, many questions Like ‘was this artifact crafted as a flute? Or were the spaced holes the result of chewing by a carnivore?’ were raised. There has been an amazing amount of analysis, discussion, debate, and disagreement on the subject, and the debate continues today. The Divje Babe artifact is 43,100 years old (±700 years), based on radio-carbon dating
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