Saws range from a basic cutting tool to a powerful saw; depending on your job or the hobby you enjoy, the types of saw machines could be entirely different.
Any construction worker will likely require a full set of saws, including those using the latest technology intended for many situations, as well as saws specifically used for the task at hand.
A carpenter or anyone running a woodshop will need many different saws with some type of crossover. A homeowner wanting to build some shelves, put up a garden fence, or trimming some of their tall trees and shrubs would need only a few specific saws that would be appropriate.
While figuring out the saws you need may seem a little overwhelming, we make it simple for you by providing the main types of saws, how they work, and what they are best suited for.
What is a Sawing Machine?
Sawing is among the most significant cutting process that is done in a manufacturing facility. Metal sawing mainly refers to cutting bar stock into a convenient length or size for machining.
The individual teeth of the saw “track” through the work, with each tooth depending on the cut made by the previous tooth in the feed direction.
The saw itself or the work is moved in order to cut straight or curved feeds, by adjusting the direction of feed. The width of the cut is about equal to the width of the saw.
Types of Saw Machine
Sawing machines can be categorized by their motion used to create the cutting action. Below the various type of saw machines are listed:
#1. Reciprocating Sawing Machine.
These types of saw machines are represented by power hack saws. A power hack saw is made up of a saw frame, a means of reciprocating the saw and frame, a work table and vise, a supporting base, and a source of power.
In operation, the machine device the blade back and forth through a work piece, pressing down on the cutting stroke and releasing the pressure on the return.
The down-feed force on the blade can be derived from gravity or springs regulated by a ratchet mechanism, a positive feed screw, or a hydraulic device.
The simplest type of feed is the gravity feed, which is the saw blade is forced into the work by the total weight of the saw and frame.
There is also a hydraulic or mechanical arrangement for lifting the blade on the return stroke. Many are crank driven the aspire usually are hydra-powered.
The stock to be cut is held between the clamping saws; several pieces of bar stock can be clamped together and cut at this same time. Both square and angular cuts can be made.
#1. Horizontal Sawing Machine.
A horizontal saw consists of a thin, flexible steel band with teeth along one edge, running continuously.
Often employed in the cutting of metal stock such as angle iron, as well as flat and round materials. The blade travels horizontally via two pulleys and independent guides.
#2. Vertical Sawing Machine.
Vertical band saws use small fixed saw blades mounted on flat surfaces for a firm and accurate cutting surface, many of which are powered by human or circular blades.
The vertical band saw employs a continuous blade saw with tines of uniform sizes along its outer edge.
#2. Circular Sawing Machine.
Cutting done by circular saws is accomplished with the help of a revolving disc. The disc could have large teeth, or nearly no teeth. Machines of this style generally can be classified into three classes as previously indicated.
#1. Cold Saw.
A cold saw has a circular blade with inserted teeth that can cut small or large bars to length. Because of the large diameters of the unavoidable or inevitable blades, it also cuts with rapidity. There is one characteristika of the cold saw is, a relatively slow speed of operation, with solid power.
The cut is very smooth and accurate. Coolants can be used in this type or not.
The thickess is about 6mm average. A Cold Saw can have automated feeding operations. The stock can be held in vises to process multiple parts or just one bar at a time.
#2. Friction Disc.
Friction discs are circular blades which have little to no teeth. They operate at very high speeds and generate heat.
The heat of friction softens the metal or workpiece in contact with the disc and the soft metal is rubbed away. Friction saws fast do run faster, but leave a bases heavier burr with less accurate surface than the cutting tooth.
#3. Abrasive Disc.
Abrasive discs, as the name implies, are thin flexible grinding wheels. Thin resin or rubber bonded wheels revolving at high speeds of spinning are generally used.
The cutting action is very fast and accurate with the cutting action, abrasive-disc cutting is not a true sawing technique.
#3. Band Saws.
A continuous blade runs over the rims of two wheels in a band saw and one wheel drives the saw and it runs at the correct speed desired for cutting.
The work is then mounted on a table between the two wheels. Unlike the reciprocating action of the hack saw which is idle on the return stroke, the band saw is always cutting.
This permits great speed with the band saw. As mentioned before, they are divided into two classifications.
#1. Contour band saw.
The contour band saw is the most versatile of all sawing machines in the application. The work may be feed in any direction on the table and the direction of the feed is easily controlled and changes while cutting is still producing any desired outline.
These machines are widely used for making dies for other parts that have an internal contour shape.
#2. Friction Band.
These sawing machines operate on the same principle as the friction circular saw. The dull blade generates considerable friction and the kerf of the teeth removes small softened pieces of the work.
#4. Hacksaw Machine.
The saw frame rotates at a fulcrum through the saw bow where a saw blade is located, with a back and forth motion to feed. This machine tool has a simple structure, small volume, and low efficiency.
The hacksaw machine has a saw blade that can take one of two motion tracks: arc or straight. In the arc movement, the saw bow rotates in a small angle around the fulcrum, and each saw tooth takes a large amount of cut thus removing chips easily and efficiently.