Designing and building mechanical systems can seem like an intimidating task, but it doesn’t have to be. With the right tools, knowledge, and a little bit of creativity, anyone can create their own mechanical system. Whether you’re a hobbyist looking to make something cool or a professional engineer wanting to create a new product, this…
Though the machine design procedure is not standard, there are some common steps to be followed; these can be followed as per the requirements wherever and whenever necessary. Here are some guidelines as to how the machine design engineer can proceed with the design: ● 1) Making the written statement: Make the written…
There are many commercial water purification systems available in market. In case you don’t have one or need to repair the existing one, this article will help you make a water filter for fixing drinking water problems temporarily. A homemade water purifier can be made in two ways: firstly,by purchasing the commercial filter element and…
This article explains what forging is and its uses and applications. The content also focuses on the different methods of forging like open or closed die forging, hammer forging, etc. What is Forging? The manufacturing stages which involve processing of metal objects through a planned heating/cooling treatments along with intermediate compression procedures is called forging….
Universal motors are known to sometimes over-speed, perhaps dangerously and destructively, when run with no load.This article deals with different methods of universal electric motor speed control. A motor which can be operated either on DC (direct current) or on single phase AC (alternating current) is called a universal motor. On both AC and DC,…
Interchangeable parts have important functions in our daily lives. Many of the machines we rely on for transportation, entertainment, and health care would not be economically available or here at all were it not for the principle of interchangeable parts. Principle of Interchangeability Interchangeability concerns the property of machine parts and units that render them…
This article is based on the basic concept of ISO System of tolerance. We will discuss fundamental deviation, fundamental tolerance, and the calculation of tolerance according to the symbol used. Based on the ISO system of limits and fits of 1940, ISO Tolerances for holes and shafts is the most modern and most effective system…
Material selection in engineering design is very important in all aspects. There are number of engineering design criteria and facts have to be considered when selecting a particular material for a certain design. Why Materials Selection? Material selection is one of the foremost functions of effective engineering design as it determines the reliability of the design…
The machine parts made up of stainless steel become brittle due to the Hydrogen Embrittlement. Here we will discuss hydrogen embrittlement and its effects in stainless steel. Hydrogen embritlement is a phenomenon that makes various metals brittle. This process reduces the ductility of metals, and causes fracture due to the exposure to hydrogen. It takes…
Keys are very useful and inexpensive locking devices for transmission shafts. The problems of key shear stress in shafts and their impacts on transmission system are described below. · Keys are used to connect the shaft to the rotating machine elements such as the hub, gear, socket, flywheel, and pulley. They are responsible for maintaining the…