MECHANICAL TO PLM

WELDING SYMBOLS AND ITS MEANING USED IN DESIGN                                 It’s a very usual aspect to use weld symbols in most of the mechanical drawings. Nowadays, it has become very important to have knowledge concerned with the welding symbols. There is a basic format given for showing the weld types used with its specifications. The welding standards have been varying in different areas. These standards had been updated from time to time by various non-profit organizations like AISC (American Institute of Steel Construction), API (American Petroleum Institute), AWS (American Welding Society) in USA and many other countries. In India, the welding standards are summarized by BIS (Bureau of Indian Standards) in which they are having certain IS (Indian standards) numbers or codes which are followed by most of the Indian companies.                        The above fig. shows the format used for annotation of weld symbol

MAIN FEATURES OF GD & T DEFINITION: -                      GD & T is a systematic way of representing the dimensions and providing additional tolerances, geometric characteristics to the dimensions accordingly. WHY IT IS USED:-                   To avoid wastage of parts while assembling, due to minor error in dimensions. BASIC RULES OF GD & T:-          1. Limits of size of a feature control the amount of variation in size and geometric form. 2.    RFS (Regardless of Feature of Size) applies with respect to the individual tolerance, datum             reference, or both, where no modifying symbol is required. MMC or LMC must be specified on the drawing wherever required. FEATURE CONTROL FRAME:-                                     Feature Control Frame is used for representing the tolerances, bonus tolerances or modifiers, geometric characteristic and datum. This frame may or may not be attached with dimensions. In the frame, the arrangement

ECR / ECO PROCESS IN PRODUCT LIFECYCLE MANAGEMENT (PLM)                             Engineering Change Request (ECR)/ Engineering Change Order (ECO) Process is a procedure of documentation involved in companies for implementing a change in product due to valid reasons in a systematic manner. It is a part of the process of product lifecycle management. This process of documentation has to be communicated to various sections of company. It can be done either in manual manner, which is done by maintaining files or by using application software like Agile, Windchill, Team Center, SAP etc. The whole process of documentation is being taken care mainly by the product development section of the company. This process mainly occurs in four stages:- 1.       ISSUE FOR A CHANGE :-                               A problem can occur anywhere in a lifecycle of a product. Many cases of problem may occur during production and assembling of the product, sometimes during servicing or mainte

FIELDS/DOMAINS IN MECHANICAL ENGINEERING                        After completing engineering, it’s a common thing among the fresher who are not placed anywhere due to backlogs or other reasons. Once they come out of the college, they use to either find a job or move on for higher studies. We all know that mechanical engg. is having the maximum number of fields. But it takes a lot of time to find out the domains/fields which are of their interest. So, to minimize the time of finding the domains, here is a list of the domains in the mechanical engineering:- 1.  Applied Mechanics :- Deals with shock and vibration, dynamics and motion, and fracture and failure in components. 2. Fluids Engineering: - Deals with designing and building systems that control or utilize flow, such as pumps, turbines, compressors, valves, pipelines and fluid systems in vehicles. 3. Heat Transfer:- Deals with combustion, power generation and transmission systems, process equipment, electro