Mechanical Engineering Blog | Portal for Mechanical Engineers

Basic properties that cutting tools must possess are: Tool material must be at least 30 to 50% harder than the workpiece material. Tool material must have high hot hardness. High toughness High wear resistance High thermal conductivity Lo…

Program Evaluation and Review Technique (PERT)  and  Critical Path Method (CPM) are the most commonly used methods for project management. There are some similarities and differences between PERT and CPM. PERT can be applied to any field requiring planned, controlled …

The Spark Ignition (SI) engine can be compared with the Compression Ignition (CI) system in 7 aspects. These 7 aspects are engine speed, cycle efficiency, fuel used, time of knocking, cycle operation, the pressure generated and constant parameters during the cycle. …

A comparison of product layout (line) and functional layout (process) in manufacturing  can be made based on workflow, job movement, inventory requirements, machine utilization, capital investment, product quality, work flexibility, space requirements, time required fo…

A feeler gauge is an instrument used to measure gap widths between two flat surfaces where it is difficult to reach. It is found in the metrology section. Feeler gauge consists of small steel lengths (leaves or blades) of different thicknesses with measurements label…

Any body with at least one measurable property that changes as temperature changes can be used as a thermometer. Such a feature is called a thermometric property. The particular substance that exhibits variations in the thermometric property is known as a thermometric …

Flanges are protruding ridge, lip, rim, or collar types used to strengthen an object, guide movements, or securely bolt machinery and connect pipes and valves. Various Types of Flanges: Weld Neck Flange : Provides high strength and is used in high-pressure and high-tem…