Describe buffing process and enlist its any two applications.

Describe buffing process and enlist its any two applications.
by

1 Answer

Answer :

Buffing process :- Buffing is used to give a much higher, lustrous, reflective finish that cannot be obtained by polishing. The buffing process consists in applying very fine abrasives with rotating wheel. Buffing wheels are made of discs of linen, cotton, broad cloth and canvass. They are made more or less firm by the amount of stitching used to fasten the layers of the cloth together. The abrasive is mixed with binder and is applied either on the buffing wheel or on the work. The abrasives may consist of iron oxide chromium oxide, emery etc. The binder is a paste consisting of wax mixed with grease, paraffin and kerosene, or turpentine and other liquid. In this process, work piece is brought in contact with a revolving, cloth buffing wheel that has been charged with very fine abrasive. The abrasives removes minute amount of metal from the work piece, eliminate fine scratch marks and produce a very smooth surface. Buffing is used to apply high luster to the work piece. 

Applications: - Automobiles, motor-cycles, boats, bicycles, sporting items, tools, store fixtures, commercial and residential hardware and household utensils and appliances.

image

by

Related questions

List out any four applications of lapping and buffing.

Description : List out any four applications of lapping and buffing.

Last Answer : Applications of Lapping:  A. Hand lapping is used for i. Press work dies ii. Moulding dies iii. Limit gauges iv. Surface plates v. Engine valve and valve seat B. ... , bicycles, sporting items, tools, store fixtures, commercial and residential hardware and household utensils and appliances. 

Explain buffing process with neat sketch.

Description : Explain buffing process with neat sketch. 

Last Answer : Buffing process :- Buffing is used to give a much higher, lustrous, reflective finish that cannot be obtained by polishing. The buffing process consists in applying very fine ... sporting items, tools, store fixtures, commercial and residential hardware and household utensils and appliances. 

Differentiate between Lapping and Buffing process.

Description : Differentiate between Lapping and Buffing process. 

Last Answer : difference between Lappin and Buffing process : Sr. No.  Lapping Buffing 1 Lapping is a finishing process in which tool used is called as lap.   Buffing ... , sporting items, tools, store fixtures, commercial and residential hardware and household utensils and appliances.  

Define soldering process and enlist any two applications.

Description : Define soldering process and enlist any two applications.

Last Answer : Soldering: Soldering is a method of joining two or more piece of metal by means of a fusible alloy or metal, called solder, applied in the molten state. Applications: 1. Circuitry ... gutters, 9. Refrigeration and plumbing machine tools components, 10. Copper foil in stained glass work.

Give application of lapping, honing, buffing and burnishing.

Description : Give application of lapping, honing, buffing and burnishing.

Last Answer : Applications of Lapping: Press work dies, Moulding dies, Limit gauges, Surface plates, Engine valve and valve seat, Races of ball and roller bearings, Gears, Piston rings, Slip gauges, ... the surface. Burnishing components are Cam & followers, matting parts of engine, aesthetical components etc.

Enlist any four operations carried out in forging process and explain fullering with neat sketch.

Description : Enlist any four operations carried out in forging process and explain fullering with neat sketch.

Last Answer : Operations carried out in forging process:  a) Upsetting b) Drawing Down c) Setting down d) Welding e) Bending f) Cutting g) Punching Fullering: In ... sledge hammer. The force is applied on the top fuller which results in decreasing the cross section at that point.

Enlist any four forgeable materials.

Description : Enlist any four forgeable materials.

Last Answer : Following are the forgeable materials; Forgeable Materials:  1) Aluminium alloys 2) Magnesium alloys 3) Copper alloys. 4) Carbon and low alloy steels 5) Martensitic stainless steels 6) ... ) Columbium alloys 10) Tantalum alloys 11) Molybdenum alloys 12) Tungsten alloys 13) Beryllium.

Enlist press operations . Explain lancing and piercing.

Description : Enlist press operations . Explain lancing and piercing. 

Last Answer : Press Operations: [1] Cutting or Shearing Operations: Blanking, Punching, Piercing, Notching, perforating, trimming, shaving, slitting, lancing. [2] Bending Operation: Angle bending [3] Forming ... clearance is provided on the die. Figure shows punch and die set for piercing. 

Enlist die accessories and state function of knock out

Description : Enlist die accessories and state function of knock out

Last Answer : Die Accessories are as follows: 1) Stops a)Button stop b) Lever stop 2) Pilot a)Direct pilot b)Indirect Pilot 3) Knock out 4) Strippers a) Fixed stripper b) Spring ... Pad Knock out: The function of knock out is to eject the finished components from the die cavity. 

Enlist any four pressing operations.

Description : Enlist any four pressing operations.

Last Answer : Pressing Operations are as follows: a) Blanking b) Punching c) Notching d) Perforating e) Trimming f) Shaving g) Slitting h) Lancing i) Bending j) Drawing k) Squeezing

Enlist any four forging components.

Description : Enlist any four forging components.

Last Answer : Forging Components:  1. Connecting rod  2. Crankshaft  3. Camshaft  4. Alloy wheel  5. Drive shafts  6. Clutch hubs  7. Universal joints  8. Hand Tools

Enlist any four merit and demerits of mechanical press

Description : Enlist any four merit and demerits of mechanical press

Last Answer : Merit :- 1. Machine structure is rational and small. 2. It is very easy to operate and it operate at a high utilization ratio. 3. Less cost of machine 4. Simple in construction. ... capacity. 3. Limited stroke length. 4. The force does not remain constant throughout the stroke.

Enlist any four demerits of VMC

Description : Enlist any four demerits of VMC 

Last Answer : 1) Need to knowledge of coding i.e difficult  2) need to proper skilled  workers 

Enlist any four demerits of soldering

Description : Enlist any four demerits of soldering

Last Answer : 1) Strength of soldered joint is low. 2) Soldered joint cannot be used in high temperature applications. 3) Limitation for joining large sections. 4) Careful removal of flux residual is required to prevent corrosion. 5) Flux may contain toxic components.

Enlist names of any four parts of automobile that can be manufactured by forging.

Description : Enlist names of any four parts of automobile that can be manufactured by forging.

Last Answer : Following are few automotive components that can be manufactured by forging Process: 1. Connecting rod 2. Crankshaft 3. Camshaft 4. Gears 5. Alloy wheel

Enlist the different materials used in press work for automobile application.

Description : Enlist the different materials used in press work for automobile application. 

Last Answer : Answer: Materials used in press work  1) Aluminium, 2) copper, 3) brass, 4) mild steel, 5) Galvanized iron (G.I) sheets, 6) Duralumin, 7) Y-alloys, 8) naval brass, 9 ... ) Babbitt metal, 11) stainless steel & its alloys, 12) Different types of steels & its alloys.

Enlist four press components used in automobiles.

Description : Enlist four press components used in automobiles. 

Last Answer : The various Pressed Products used in Automobiles are: 1) Gears 2) Crank Shafts 3) Automobile panels 4) Wires 5) Frames and Chassis 6) Connecting Rods 7) Springs 8) Carburetor bodies 9) Valves 10) Combustion Chamber 11) Cylinder heads & blocks 12) Gear box cases etc.

Explain the working principle of galvanizing process. Give its applications also.

Description : Explain the working principle of galvanizing process. Give its applications also. 

Last Answer : Galvanization or galvanisation or galvanizing is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which parts are ... 5. All sort of containers 6. telegraph wire 7. fencing materials 8.Transformer parts

Explain metal spraying process and give two applications.

Description : Explain metal spraying process and give two applications.

Last Answer : Metal praying of metalizing literally means to treat with or coat with a metal or metallic compound. Metalizing as a process normally includes the preparation of base material, the spraying on ... Its other applications are in having decorative films, reflecting surfaces and special metal forms. 

List any four applications of forging process.

Description : List any four applications of forging process. 

Last Answer : Applications of Forging Process: 1. Connecting rod 2. Crankshaft 3. Camshaft 4. Spanner 5. Alloy wheel 6. Differential gears 7. Drive shafts 8. Clutch hubs 9. Universal joints 10. Hand Tools

Explain material used in press work for automobile applications

Description : Explain material used in press work for automobile applications

Last Answer : Answer:  Materials used in press work 1) Aluminium, 2) copper, 3) brass, 4) mild steel, 5) Galvanized iron (G.I) sheets, 6) Duralumin, 7) Y-alloys, 8) naval brass, 9) cartridge brass, 10) Babbitt metal, 11) stainless steel & its alloys, 12) Different types of steels & its alloys. 

State any four applications of resistance welding.

Description : State any four applications of resistance welding. 

Last Answer : Answer: Applications of resistance welding: 1. Resistance welding is widely used in automotive industries. 2. Projection welding is widely used in production of nut and bolt. Projection welding is ... welding is applied in manufacturing of wheel rims, wire joints and railway track joints etc. 

State the principle used in Lapping. List four applications of Lapping.

Description : State the principle used in Lapping. List four applications of Lapping.

Last Answer : Principle of Lapping: Lapping is basically an abrasive process in which loose abrasives function as cutting points finding momentary support of the lap. The process has the following features. (a) Use of ... roller bearings ii. Gears iii. Piston rings iv. Slip gauges v. Crankshaft.

List types of welding flames used in Oxy-acetylene welding. Write their characteristics and applications.

Description : List types of welding flames used in Oxy-acetylene welding. Write their characteristics and applications.

Last Answer : Types of Flames: Characteristics Applications. 1)Neutral Flame: When oxygen and acetylene are supplied to the torch in nearly equal volumes, a neutral flame is produced. It has two ... cone of whitish colour. 3) Bluish outer cone High Carbon Steel, non - ferrous alloys,

Compare Brazing and Soldering on the basis of : (i) Temperature Used. (ii) Filler Material. (iii) Joint Strength (iv) Applications.

Description : Compare Brazing and Soldering on the basis of : (i) Temperature Used. (ii) Filler Material. (iii) Joint Strength (iv) Applications.

Last Answer : Comparison of Brazing and Soldering:

List applications of seam welding.

Description : List applications of seam welding.

Last Answer : Seam welding is used to produce leak proof joint required in 1. Small Tanks, 2. Boilers 3. Containers, 4. Radiators 5. Heat Exchangers etc.

Describe with sketch the surface treatment process used to built-up worn out metal components of automotive engines.

Description : Describe with sketch the surface treatment process used to built-up worn out metal components of automotive engines.

Last Answer : Metal spraying is to build-up worn out metal components of automotive engines.   Metal Spraying of metalizing literally means to treat with or coat with a metal or metallic compound. Metalizing as ... being coated, by compressed air. A sectional view of metal spraying gun is shown in fig.  

Describe Abrasive blast cleaning process with neat sketch.

Description : Describe Abrasive blast cleaning process with neat sketch.

Last Answer : Abrasive Blast Cleaning (Blasting): This method is widely used for removing all classes of scale and rust from forgings, castings, weldments, and heat treated parts. Depending on the finish ... and other material are removed, providing an excellent surface for bonding final finishes.

Describe briefly any two die accessories.

Description : Describe briefly any two die accessories.

Last Answer : 1. Stops: The stops are used for correct spacing of the sheet metal as it is fed below the punch to give the greatest output in given length of the plate. 2. Pilots: The pilot ... 5. Pressure pad: It is used for drawing operation for maintaining flat surface of the cup   

Sketch and describe the following press operations: 1. Punching 2. Shearing and 3. Trimming

Description : Sketch and describe the following press operations: 1. Punching 2. Shearing and 3. Trimming

Last Answer : (i) Punching : In punching operation, a hole is the desired result. The size of hole is determined by the size of punch and clearance is allowed on the die. The figure shows the ... still hot for maximum efficiency; therefore it is usually incorporated into the larger production process.

Describe in brief the equipments required for oxy-acetylene welding.

Description : Describe in brief the equipments required for oxy-acetylene welding.

Last Answer : The following equipments are required for oxy-acetylene welding. 1. Welding torch or Blowpipe: It is the tool for mixing two gases in the desired volumes and burning the mixture at the end of a ... particularly when the oxides of the base metal have a higher melting point than the metal itself.

Describe briefly soldering and brazing operation.

Description : Describe briefly soldering and brazing operation.

Last Answer : Soldering: It is a method of joining two or more pieces of metal sheets by means of a fusible alloy or metal , called solder, applied in the molten state. The melting point of the ... by metallic bonding. Copper, Copper alloys, Silver alloys and Aluminium alloys are used for brazing process. 

Describe with neat sketch: (i) Spot Welding (ii)Seam Welding

Description : Describe with neat sketch: (i) Spot Welding (ii)Seam Welding

Last Answer : (i) Spot Welding: Spot welding is employed to join overlapping strips, sheets or plates of metal at small areas .The pieces are assembled between two electrodes, which must possess high electrical & ... used to conserve the electrodes and cool the work rapidly to speed up the operation.   

Describe briefly, hand forging and machine forging.

Description : Describe briefly, hand forging and machine forging. 

Last Answer : Hand Forging: [1] Hand forging is the oldest type of metal working process and has influenced the formation of other materials through the age. [2] Smith forging was formerly the process ... the height from which they fall, the higher will be intensity of blow the hammer will provide.

Describe the working principle of Arc Welding.

Description : Describe the working principle of Arc Welding.

Last Answer : Arc welding is the most extensively employed method of joining metal parts. Here the source of heat is an electric arc. The arc column is generated between an anode which is the positive pole of D.C. ... also melted and is transferred in to the metal in the form of globules of molten metal.  

Describe forging sequence for crank shaft.

Description : Describe forging sequence for crank shaft.

Last Answer : Forging Sequence for Manufacturing Crank Shaft: [1] Stock is redistributed and size is increased at certain place and reduced at other place by roll forging.   [2] After preliminary roll forging, stock ... the finished part is then trimmed in blanking die to remove excess metal or flash.   

Describe procedural steps for developing CNC part programme.

Description : Describe procedural steps for developing CNC part programme. 

Last Answer : Procedure for developing part program There are two methods of part programming: manual part program and computer assisted part programming. Manual part programming: 1. To prepare a part program using the ... . 5. The NC system machines (makes) the part according to the instructions on tape. 

Describe incremental programming method with suitable example.

Description : Describe incremental programming method with suitable example.

Last Answer : Incremental programming methodIn Cartesian co-ordinate geometry system using incremental measurement. Each point is always specified using the path differential from the preceding point position. So in such a ... applied to the system as a distance increment, measured from preceding point.

Explain the resistance spot welding process with neat sketch. State its two advantage and disadvantage.

Description : Explain the resistance spot welding process with neat sketch. State its two advantage and disadvantage. 

Last Answer : Resistance Spot welding: Spot welding is employed to join overlapping strips, sheets or plates of metal at small areas .The pieces are assembled between two electrodes, which must possess high electrical & thermal ... for making the RSW a success. 4. The thick jobs are not easy to weld. 

State any two advantages of forging process.

Description : State any two advantages of forging process. 

Last Answer : Advantages of forging processes: 1) Complex shaped parts can be forged 2) Mass production with greater accuracy is achieved. 3) It is very easy to maintain close tolerances. 4) ... highly skilled operator. 6) Better reproducibility. 7) Machining is not necessary to obtain final shape 

Explain seam welding process with the help of neat sketch.

Description : Explain seam welding process with the help of neat sketch.

Last Answer : Seam Welding is a Resistance Welding (RW) process used for producing continuous joint of overlapping sheets by passing them between two rotating electrode wheels. Heat generated by the electric current flowing through ... the electrodes and cool the work rapidly to speed up the operation.    

List common equipments used for arc welding process.

Description : List common equipments used for arc welding process.

Last Answer : 1. A.C. or D.C. machine 2. Electrode (bare or coated) 3. Electrode Holder 4. Cables and its connectors 5. Chipping Hammer 6. Earthing Clamps 7. Wire-brush 8. Helmet 9. Safety Goggles 10. Hand Gloves 11. Apron Sleeves etc.

Classify butt welding process.

Description : Classify butt welding process.

Last Answer : Classification of Butt Welding Processes: 1. Flash Butt Welding 2. Resistance Butt Welding 3. Hand Welding 4. Upset Welding

Differentiate between lapping and honing process.

Description : Differentiate between lapping and honing process.

Last Answer : S. N. Lapping Honing 1 Lapping is a finishing process in which tool used is called lap. Honing is a finishing process in which tool used is called ... level. Used to improve certain form characteristics such as cylindricity, surface finish, or sphericity.

Differentiate with acid cleaning and alkaline cleaning process.

Description : Differentiate with acid cleaning and alkaline cleaning process. 

Last Answer : Acid Cleaning Process Alkaline Cleaning Process 1 Acid cleaning is used for removal of light rust, tarnish, scale, drawing compounds, oil, and grease It is used for the ... .  caustic soda, tri-sodium phosphate, silicates, borates, or carbonates are the alkaline agents.

Explain electroplating process

Description : Explain electroplating process

Last Answer : Electroplating Process: Electroplating may be described as a process of covering a surface or object usually metallic with a thin adherent coating of same or other metal by electrolysis. The form of ... wear. Gold, silver and platinum plating are used in jewellery and electronic industry. 

State “Plane washer” making process with use of combination die.

Description : State “Plane washer” making process with use of combination die.

Last Answer : (Note: The plain washers can be produced by using Compound die or Progressive die. It is not possible to use combination die for making plain washers, so consider compound die or progressive die for answer. ... Stop 2.sheet metal 3.pilot 4.blanking punch 5.ram 6.piercing punch 7.stripper 8.die

Give classification of welding process.

Description : Give classification of welding process.

Last Answer : Classification of Welding Process a. Arc welding 1) Carbon Arc Welding; 2) Shielded Metal Arc Welding (SMAW) 3) Submerged Arc Welding (SAW) 4) Metal Inert Gas Arc Welding (MIG, GMAW) 5) ... (USW) e. Thermit Welding (TW) f. Electron Beam Welding (EBW) g. Laser Welding (LW)

Explain how tumbling process is used to clean the surfaces.

Description : Explain how tumbling process is used to clean the surfaces.

Last Answer : Tumbling process: Tumbling process is used for removing rust and scale from metal parts. In this dry abrasive (deburring compounds) are effective for removing rust and scale from small parts of ... from the product. Parts configuration and size are the primary limitations of the process 

State advantages and limitations of honing process.

Description : State advantages and limitations of honing process. 

Last Answer : Advantages: 1. Less complex or low cost fixtures. 2. It is highly accurate. 3. It can be used for both long and short bores. 4. It maintains original bore centerline. 5. Any ... rotated or supported. If the workpiece is thin, even hand pressure may cause a slightly oval hole.