Name the types of flames with application.

1 Answer

Answer :

1) Neutral Flame: - A neutral flame is obtained when equal amounts of oxygen and acetylene are mixed and burnt in a torch.

image 

Applications: - stainless steel, cast iron, copper, mild steel and aluminum

2) Oxidizing Flame: - If more oxygen is added, the cone becomes darker and more pointed, while the envelope becomes shorter and is called Oxidizing flame  

image

Applications: - copper base alloy, zinc base metal, Brass and Bronze

3) Carburizing Flame: A carburizing or reducing flame is obtained when acetylene is supplied more than oxygen. 

image

Applications:-high carbon steel, nonferrous alloy

Related questions

Description : Sketch and label different types of gas welding flames. Also give application of any one flame.

Last Answer : 1) Neutral Flame: - A neutral flame is obtained when equal amounts of oxygen and acetylene are mixed and burnt in a torch.   Applications: - stainless steel, cast iron, copper ,mild ... when acetylene is supplied more than oxygen.   Applications:-high carbon steel, nonferrous alloy 

Description : List various types of flames used in gas welding. 

Last Answer : Answer: 1. Neutral Flame 2. Oxidizing Flame 3. Carburizing Flame 

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,

Description : What are the maximum temperature ranges for oxidizing and neutral flames

Last Answer : The neutral flame has a temperature between 5,600 and 5,900 degrees Fahrenheit. Oxidizing flame has a temperature between 6,000 and 6,300 degrees Fahrenheit.

Description : Explain with sketch construction and application of progressive die.

Last Answer : OR Construction A progressive die consists of the following parts.: 1. Stop 2. Sheet metal 3. Pilot 4. Blanking punch 5. Ram 6. Piercing punch 7. Stripper Plate 8. Die ... such as automotive, electronics and appliances. Example car brake caliper, washer, lid of a beverage can etc.

Description : Define Soldering. Give one application of soldering. 

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

Description : What are the application of CNC machines?.

Last Answer : Drill press Milling and turning centres Boring machines Surface grinders Manufacturing industries etc.

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.

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.

Description : What is interpolation? State its types. Explain linear interpolation with neat sketch

Last Answer : Definition : When the feed rates of individual axis are not constant and they vary continuously through the move it is called interpolation. Following are the types of interpolation: 1. G00- Rapid Traverse 2. ... to clear the job for loading /Unloading N9 M02 EOB  Programme End.  

Description : Name the types of dies used in press work. Explain any one with neat sketch.

Last Answer : The various types dies used in press work are: 1. Types of dies according to operations performed (i) Shearing (ii) Bending (iii) Drawing (iv) Squeezing 2. Types of ... giving output. These dies are simple in construction and can manufacture by conventional machining processes.     

Description : Name the different types of presses used in industry. State the working principle of press. 

Last Answer : Types of presses used in industry: According to Source of power to ram: 1. Crank 2. Cam 3. Eccentric 4. Power screw 5. Rack and pinion 6. Toggle 7. ... ) hydraulic, mechanical, pneumatic and respectively working on principle of Pascal law, Mechanical Pressure and Pneumatic Pressure.

Description : Explain with neat sketch pilots and its types.

Last Answer : The pilot illustrated in Fig. enables the correct location of the blank when it is fed by mechanical means. The pilot enters into the previously pierced hole and moves the blank to the correct ... enter previous punched holes in the strips some distance away from the blanking punch    

Description : Explain any two types of resistance welding processes in detail.

Last Answer : 1.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 ... small parts. Butt Welding provides joining with no loss of the welded materials.   

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.

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.  

Description : Explain the shielded metal arc welding (SMAW) processes with neat sketch. State its two advantages and disadvantages.

Last Answer : Working  : Shielded metal arc welding uses a metallic consumable electrode of a proper composition for generating arc between itself and the parent work piece. The molten electrode metal fills the weld ... . 2. Weld may contain slag inclusions 3. Fumes make difficult the process control.

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. 

Description : Draw neat labeled sketch of ply press.

Last Answer : sketch of ply press

Description : Draw flatter and Fuller. State its use in forging.

Last Answer : 1. Fuller: Use of Fuller: Fuller is a forging tool, used to spread the metal. The fuller is placed against the metal stock, and then either the fuller or the stock is struck ... are used to give smoothness and accuracy to articles which have already been shaped by fullers and swages. 

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.    

Description : List the materials used in press work for automobile components parts with example.

Last 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, ... 8) Carburettor bodies 9) Valves 10) Combustion Chamber 11) Cylinder heads , blocks,  12) Gear box cases

Description : Explain the following press operations (a) Punching (b) Drawing

Last Answer : a) 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 spacing of hole on plate2 ... between punch and die is greater. [5] The drawing operation is illustrated in Fig.  

Description : Explain drop forging with neat sketch. 

Last Answer : Drop Forging Process: Drop forging is carried out by using drop hammers. They are board or gravity hammer, air lift hammer and power drop hammer. Anvil of drop forging hammer is attached to the frame ... [5] This energy will be delivered to the metal work-piece to produce plastic deformation.  

Description : State the meaning of G90, G91.

Last Answer : Meaning of following G-Codes: G90 :- Absolute Dimensioning G91:- Incremental Dimensioning

Description : Give Classification of Presses.

Last Answer : 1. Classification on the basis of source of power. Manual Presses.  Mechanical presses. Hydraulic Presses. Pneumatic Presses. 2. Classification on the basis of number of slides. Single ... - Frame Presses. Gap Frame Presses. Straight Side Presses. Horn Presses. Inclibable Press

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.

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. 

Description : State the function of G00, G94, M08 and M30 used in CNC part programming. 

Last Answer : 1) G00 :- Rapid Traverse Function G00 is the basic G-code for CNC programming to initiate rapid motion mode i.e used for quickly positioning the tool. G00 can be used where the tool is not ... production. As soon as the program ends he can place the next component and start the next cycle. 

Description : What are the factors considered while selecting the components for machining on CNC machines?

Last Answer : Following are the factors to be considered in selecting components of CNC machines? 1. High precision and repeatability. 2. Reliability. 3. Efficiency -To meet the requirement of high precision. ... should be such that removal of swarf is easy and the chips do not fall on the slideways.

Description : State salient features of CNC machines.

Last Answer : Salient Features of CNC machines .. 1. A part program can be fed to the controller unit through a keyboard. 2. The part program once entered can be used again and again. That is why ... control unit allows compensation for any changes in the dimensions of cutting tools caused due wear or otherwise. 

Description : List various surface finishing processes. Explain lapping.

Last Answer : List of Surface Finishing Processes: [1] Grinding [2] Honing [3] Lapping [4] Burnishing [5] Buffing [6] Polishing Lapping Lapping is basically an abrasive process in which ... constantly changing. The effective path is of cycloid in nature. Figure shows the lapping process.  

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. 

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.

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. 

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.   

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.

Description : List various pressed products which are 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) Carburettor bodies 9) Valves 10) Combustion Chamber 11) Cylinder heads , blocks  12) Gear box cases etc.

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   

Description : Explain forming and punching operation with neat sketch.

Last Answer : Forming: Forming processes are particular manufacturing processes which make use of suitable stresses (like compression, tension, shear or combined stresses) to cause plastic deformation of the materials to produce ... metal from being lifted along with the punch 3 after punching operation.   

Description : Write down the sequence for manufacturing of crankshaft.

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 is ... 5] Then the finished part is then trimmed in blanking die to remove excess metal or flash. 

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.

Description : Write forging sequence for spanners.

Last Answer : Forging Sequence for Spanner: (1) The heated stock is elongated by reducing its cross section in first die. The operation is known as Fullering . (2) The metal is redistributed, increasing the cross ... . (5) Flash is removed. (6) Heat treatment and machining is done as per requirement. 

Description : What is Forgability? On which factors it depends?

Last Answer : Forgability is defined as the ability of a metal to change size and shape when heated to required temperature and compressed by applying some pressure. OR The ease with which forging is done is called ... of Metals [3] Mechanical Properties of Metals [4] Shape and Size of part to be forged 

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

Description : What is the part programming?

Last Answer : Part Programming: [1] A part program is a set of instructions given to a computerized numerical control (CNC) machine to control its operation. [2] CNC part program contains a combination of machine tool ... speed  (d) Feed  (e) Auxiliary functions such as coolant on and off, spindle direction

Description : List the components of NC machines.

Last Answer : Components of NC Machines: 1. Program input device  2. Memory storage 3. Microprocessor 4. Machine control Unit (MCU) 5. Drive system 6. Machine Tool 7. Feedback system 8. Programmable logic controller (PLC) 9. Machine control panel 10. Operator control panel 11. Tape Reader

Description : Name various surface coating processes.

Last Answer : Surface coating process: (1) Metallic coating (2) Plastic coating (3) Organic coating (4) Inorganic coatings (5) Conversion coating (6) Other metal coating processes

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

Description : State the factors on which weldability depends.

Last Answer : Factors on which weldability depends: 1. Material grade, material thickness, design, weld property requirement 2. Equipment type, edge preparation design 3. Tip / work piece distance, ... Cost of materials 15. Code or specification requirements 16. Mechanical properties desired in joints