Difference between Positive and Negative Rake Angles

Difference between Positive and Negative Rake Angles Points : difference between positive and negative rake angles, positive rake angles vs negative rake angles, comparison between positive and negative rake angles, difference between the rake angle and cutting angle

Difference between Positive and Negative Rake Angles Positive Rake Angles Negative Rake Angles 1. A positive rake angle is a top rake angle of less than 90° A negative rake angle is a top rake angle of 90° or larger. 2. A positive rake angle to cut hard materials such as cast iron. A negative rake angle to remove large amounts of material.

Functions or Uses of Coolants or Cutting Fluids

Functions or Uses of Coolants or Cutting Fluids Points : functions or uses of coolants or cutting fluids The main purpose of cutting fluids are given as under.

1. It helps in keep newly machined surface bright with give a protective coating beside atmospheric, oxygen and therefore keep the finished surface as of corrosion.

Importance of Metal Work

Importance of Metal Work Points : Importance of Metal Work, basic concepts of metal Workshop, Short note on Importance of metal work Metal work is commonly observed as the functioning of metal, as of 16 gauges downward to 30 gauges, by hand tools with simple machines into different forms by cutting, form into shape with joining.

Parts of Power Hack Saw

Parts of Power Hack Saw Points : Parts of Power Hack Saw, Enlist the different parts of Power Saw

1. Connecting rod
2. Cut off gauge
3. Vise Handle

Types of Metal Cutting Saws

Types of Metal Cutting Saws Points : Types of Metal Cutting Saws, different types of metal cutting saws, Enlist the types of metal cutting saws

1. Horizontal Band Saw
2. Abrasive Cut Off Saw

Differentiate between Counter Sinking and Counter Boring

Differentiate between Counter Sinking and Counter Boring Points : Differentiate between Counter Sinking and Counter Boring, comparison between counter sinking and counter boring Counter Sinking Counter sinking is method of making a cone shaped increase of end of a hole to provide is recess for a plane head screw and counter sunk rivet intense on the hole.

Dies and it Process

Dies and it Process Points : Dies and it Process, Process for Using the Die Stock Die is prepared of instrument steel have flutes in them used for cutting ends.

Safety Precaution While Chipping with Chisel

Safety precaution while chipping with chisel Points : Safety precaution while chipping with chisel, What safety precautions should be observed when chipping with chisel?

1. Towards slash off a strip, use vise as a show with shear the metal down the line of jaws by a flat chisel.

Operation of Chipping

Operation of Chipping Points : Operation of Chipping, function of chipping

1. All times look at cutting end, as chip being removed resolve whether the chisel must be raised or lower to raise depth of cut.

Cutting Tools and Chisels Used in Metal Work

Cutting Tools and Chisels Used in Metal Work Points : Cutting Tools and Chisels Used in Metal Work, Enlist cutting tools and chisels used in metal work

1. Files (Half round, flat, hand, round, knife, pallor, square, three square, rasp files)
2. Tin snips (Sheet cutter)

Layout and Name of Layout Tools

Layout and Name of Layout Tools Points : Layout and Name of Layout Tools, What do you mean by “Layout’? Enlist the layout tools The tool use meant for mark and creation depiction on metal is called layout tools. They are various types folks use for creation mechanical diagram as lines must be scratched or cut a little into metal.

Types of Steel Rules Use in Metal Work

Types of Steel Rules Use in Metal Work Points : Types of Steel Rules Use in Metal Work, Enlist types of steel rules used in metal work

1. Shrinkage rule
2. Slide or caliper rule

Slip Roll Forming Machine and It Used

Slip Roll Forming Machine and It Used Points : Slip Roll Forming Machine and It Used Slip Forming Machine provide a fast method of forming cylinders and cones. Such machines are also call forming rolls. Metal up to 22 gauge and 36” wide can be formed on the machine. This machine has three rolls.

Squaring Shear Machine

Squaring Shear Machine Points : Squaring Shear Machine, Definition Squaring shear is operate with the foot and is use to cut thin, soft metal. It should be used only to cut 18 gages or thinner metal; it is especially useful for cutting strips of sheet metal and for trimming and cutting the edges square to each other.

Bending Machine

Bending Machine Points : Bending Machine, Definition Brake Machine for creation bends and folded edges on larger and heavier pieces of metal than are worked on the bar folder the cornice brakes is such a machine. It is easy to work.

Embossing

Embossing Points : Embossing, Definition, Embossing Process, Basic Steps of Embossing Definition Embossing it is the operation to impart a raised or depressed fancy design on the surface of the blank material. Circular grooves on sheet metal container, metal military buttons with insignia (identifying mark) raised on the surface, is called of embossing.

Forming Process

Forming Process Points : Forming Process, Roll Forming Forming shape is similar to bending except that the bend is along quire instead of straight is bending large redial in straight line may also be referred as forming operation.

Drawing Process

Drawing Process Points : Drawing Process, Definition Definition Drawing is a plastic deformation process in which a flat sheet, or plate is formed into recessed, three dimensional part with a depth more than several times the thickness of the metal The metal assumes the desired configuration as a punch descends into a mating or the die moves upward over a punch.

Blanking Machine

Blanking Machine Points : Blanking Machine, Definition Definition Blanking is a process of cutting or shearing a blank from sheet or strip material I the production of many articles from sheet metal under a press or by spinning, the process of blanking is often the first operation in the production cycle. Simply expressed, blanking is the process of shearing from sheet or strip metal a blank of a given shape.

Basic Steps in Bending Operation

Basic Steps in Bending Operation Points : Basic Steps in Bending Operation The Basic steps in bending operation are as follow.

1. To investigate and study the work-piece and thus obtain the properties which must be considered during beveling operator.