When machine members fastened together with Riveted joints, cotter joints, knuckle joints etc. There will be a compressive stress produced at the surface of contact between the two machine members. This stress can be called as the Bearing Stress. Let’s see how a bolt can experience the bearing failure. Bearing stress can also be said as […]
What is Shear stress and Shear strain?
In a Machine, every component subjected to various forces. Due to these forces acting on the machine components, there are various types of stresses are induced. Where a simple stress is defined as the internal resistance force that opposes the external force per unit area. Where the Strain is defined as the deformation per unit length. […]
What is Young’s Modulus or Modulus of Elasticity?
Young’s Modulus is a mechanical property of the material where it can be called as modulus of Elasticity/Elastic Modulus. An English physician and physicist named Thomas Young described the elastic properties of materials. Young’s modulus can be defined as simply the stiffness of a solid material. When an external force acts upon a body, then the […]
What is Simple Stress and Strain definitions?
In a Machine, every component subjected to various forces. Due to these forces acting on the machine components, there are various types of stresses are induced. Where a simple stress is defined as the internal resistance force that opposes the external force per unit area. Where the Strain is defined as the deformation per unit length. […]
What is Surface Finish and Surface Roughness?
In Mechanical Engineering Surface finish and the surface roughness, both are referred to same. But In general Surface finish referred as the overall texture of the surface and it is a combination of three factors. Those are surface roughness, Surface waviness, Lay. Little Confusion? Let’s get into the topic Make it Clear. We produce Machine elements […]
How to Calculate tolerance values for shaft or a hole?
In machine Design, each machine member will be mated with another machine member with the defined fit. There are the different type of fits available. They are Clearance Interference, Transition fits. These fits are controlled with some Tolerances and allowances according to some Standards. Actually, these tolerances values can be calculated. According to Indian Standard […]
Fundamental deviations for shaft and holes acc. Indian Standard system.
Fundamental Deviation of shaft and holes– Fundamental deviation is an allowance rather than tolerance. The allowance is simply the deviation between the hole minimum diameter to the shaft maximum diameter. Where the tolerance refer to either hole (Max. dia of hole-Min. Dia. of the hole) or shaft (Max. Dia. of the shaft- Min. Dia. of […]
What are Hole Basis System and Shaft Basis system?
Hole Basis System and Shaft Basis system – In the Machine design process there are different components that are mated together to make the machine. These components will have different functions. Based on their type of functions there must be the type of fits between the two mating components should be determined. How actually can […]
What are the different types of Fits in Engineering?
Types of Fits In Engineering-In mechanical engineering, the Mating of two components is to be determined based on the function of the two components. Even though the fasteners make them tight but tightness between the two surfaces may be needed high in some applications wherein in other applications it is not required to be that […]
What are the important Terms used in Limit System?
In mechanical engineering System of limits or Limit System is a concept of controlling the sizes of machine elements while manufacturing each component. Because taking exact dimensions is an ideal condition but in practical(Manufacturing/Measuring) methods, it is not possible. So limit system enables how much amount of deviation is acceptable. How do we apply the limit system […]
What is Interchangeability in Machine Design? | Interchangeable Parts |
Topic: What is Interchangeability in Machine Design? | interchangeable parts | In Machine Design Interchangeability represents the interchangeable parts. So what are the Interchangeable parts? A machine is a combination of several components. If any of the components is failed or broken then the part needed to be replaced with a new component. This new component should […]
What are the Manufacturing Processes for Engineering Materials?
Topic: What are the Manufacturing Processes for Engineering Materials? Producing a product from the raw materials involves a number of operations. These all operations come under the manufacturing processes. The knowledge of the manufacturing processes is the backbone of engineering. There are different manufacturing processes are available. They are discussed in brief below. Manufacturing Processes The following are […]
What is Potential Energy? | What is Kinetic Energy? | Strain Energy
Topic: What is Kinetic Energy? | What is Potential Energy? | Strain Energy Before going into the topic, we need to know few things before. [You can skip these definitions and scroll down to directly get into the subject] What is Energy? “The capacity to do work,” said as Energy What is Work? When a […]
What is Moment of Inertia formula Derivation?
Topic: What is Moment of Inertia formula Derivation? First of all What is Inertia? “Inertia is a resistance force of a physical object to any change in its state of motion” Now let’s see what is Moment of inertia? how it is different from the word “Inertia” and “Moment inertia“. “Moment of Inertia is a […]
What is Force, Moment of Force, Couple, Torque in detail?
Topic: what is Force, Moment of Force, Couple, Torque in detail? It is a physical quantity that might cause an acceleration in mass. there are many definitions of Force are available. Force can also be described as a push or a pull on an object. Aristotle said “Anything that causes an object to undergo “unnatural motion,” said […]
What are the different Flatness Testing Methods for Surface Plates?
Topic: What are the different Flatness testing methods for Surface Plates? The surface plate is a massive solid structure, highly rigid in design which is having a true flatness of the surface. In metrology, the Surface plate is used as a measuring base or a datum surface for testing of flatness of surfaces. Surface plate forms the […]
What are the Rules for writing SI Units? | Why space between number and unit scientific writing?
Topic: What are the Rules for writing SI Units? | space between number and unit scientific writing The different Measurement systems are Imperial System or F.P.S System Metric system or M.K.S System S.I System Read more about Measurement systems here… S.I System S.I means System International. It is more superior to all other systems. This system is extension and refinement of the Metric […]
What is a LVDT? | Linear Variable Differential Transformer
Topic: LVDT? | Linear Variable Differential Transformer | LVDT Position Sensor LVDT stands for Linear Variable Differential Transformer. We can simply call Differential Transformer. LVDT is an Electro-Mechanical Sensor. Before getting into the topic we must not confuse with the following terms Sensor: A device that converts a physical motion into an electrical output. Actuator: A device […]
What is Machine Design Procedure?
Topic: What is Machine Design Procedure? | General procedure in machine design | Steps Involved in machine design In Mechanical Engineering, Machine Design is subjected to creating new or Advanced machines. This involves improving the existing machines to better machines. The Machine design procedure will require so many factors need to be considered. These factors […]
What is Machine Design in Mechanical Engineering?
Topic: What is Machine Design in Mechanical Engineering? | Product Design | Mechanical Engineering Basics | Last Updated: 23 February 2018 Introduction to Machine Design In Mechanical Engineering, Machine Design is subjected to creating new or Advanced machines. This involves improving the existing machines to better machines. The design process is a time-consuming process which includes […]
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