A Complete Online Guide For Every Mechanical Engineers
Wet sump lubrication system This system consists of a large storing capacity of oil at base of the crank chamber. From the sump the oil is drawn by the pump and applied to various parts of the engine. Excess oil after serving the purpose will gradually return to the sump. Splash type lubrication This type…
Rough grinding machine Rough grinding machines are generally used to remove a large amount of material from the work piece.in this type of grinding the surface finish is not good rough grinding are generally used to remove the sprue from the casting product, to grind the projections, to surface the weldments and sharpening the hand…
Types of Accumulator – Hydraulic Accumulator A hydraulic accumulator can store fluid under pressure and perform hydraulic functions in a range of aspects. This is a product that is convenient to use for years without problems. A certain amount of fluid could be received and accumulated by the accumulators under pressure. If a specific task in the…
Taper turning methods in lathe machine. Types of taper turning. There are four methods:1. Form tool method 2. Tailstock set over method 3. Compound rest method
4. Taper turning attachment method
Engine bearing The crankshaft if supported by bearing. The connecting rod big end is joined to be crank pin on the crank of the crankshaft through a bearing. A piston pin at the rod small end is accustomed attaching the rod to the piston. The piston pin drives in bearings. Everywhere there is rotating…
Milling Machine Milling is the process of removing metal by feeding the work past against a rotating multipoint cutter. The metal is removed in the form of small chips. In milling operation the ratio of metal removal is rapid as the cutter rotates at a high speed and has many cutting edges thus the…
Battery or coil ignition system Most of the modern spark ignition engines use battery ignition system. The system consists of the following constituents: · Battery · Ignition switch. · Induction coil. · Circuit / contact breaker. · Condenser. · Distributor. One terminal of the battery is ground to the frame of the engine,…
TYPES OF QUICK RETURN MECHANISM There are three types of quick return mechanism 1. Hydraulic drive 2. Crank and slotted link mechanism 3. Whitworth mechanism A quick return mechanism is a mechanism which produces a reciprocal effect so that the system takes less time in the return stroke while comparing with forward stroke. In the…
TYPES OF CHIPS There are three types of chips: 1. CONTINUOUS CHIP During cutting of ductile materials, a continuous chip is produced due to the presence of tool cutting edge in compression and shear. These types of chip are in the form of long coil and have the same thickness throughout the length. This type…
ULTRASONIC DRILLING PROCESS Ultrasonic waves are used for making holes in very hard materials (eg. glass, diamond). a powerful ultrasonic generator is fitted with a drill bit and used for this purpose. A thin fluidic paste of carborundum powder and water is made to flow between the drill bit and plate in which…
DRILLING OPERATIONS Drilling Drilling is the operation of cutting a round hole by a rotating tool called drill. Before the process of drilling, the center of the hole is positioned on the work piece. Two lines at right angles to each other are drawn. A center punch is used to mark the center point…
Process involving heating and cooling under the controlled conditions of a material to obtain certain desirable properties is known as heat treatment. 1. Laser surface alloying The different types of heat treatment process using laser are shown in the picture. In the process of annealing there is no zone affected by the heat…
SINGLE SPINDLE AUTOMATIC LATHES A single spindle automatic lathe is a modified form of turret lathe. These machines have an addition to a 6-station turret, a maximum of 4 cross slides. These cross slides are operated by disc cams. The cams are mounted on a shaft which draws the power from the main spindle through…
INTRODUCTION In Planner, the work piece mounted on the table reciprocates but the tool is stationary. A single point cutting tool is used for machining the work surface. This tool is always positioned vertically the tool holder which moves on a cross-rail while feeding. Planer is mainly used for machining large and heavy work…
