Overview of Abrasive Saws
– Also known as cut-off saws or chop saws
– Circular power tools used to cut hard materials like metals, tile, and concrete
– Cutting action performed by an abrasive disc, similar to a thin grinding wheel
– Does not use regularly shaped edges (teeth) for cutting
– Available in table top, free hand, and walk behind models
Types of Abrasive Saws
– Table top models commonly used for cutting tile and metal
– Electrically powered with a built-in vise or clamping arrangement
– Free hand designs used for cutting concrete, asphalt, and pipe on construction sites
– Handles and motor located near the operator, with the blade at the far end
– Walk-behind models, also known as flat saws, used for cutting concrete floors, asphalt, and paving materials
Blades Used in Abrasive Saws
– Composite friction disk blades commonly used in abrasive saws
– Abrasive disks are consumable items and wear throughout the cut
– Typical diameter of abrasive disks is 14in (360mm) and thickness is 764in (2.8mm)
– Larger saws use 410mm (16in) diameter blades
– Superabrasive blades (diamond and cubic boron nitride) last longer and generate less hazardous particulate matter
Applications of Abrasive Saws
– Portable cut-off saws make steel fabrication on building sites easier
– Replaced acetylene torches in many applications, such as cutting rebar
– Allows construction workers to cut through concrete, asphalt, and pipe with precision
– Suitable for cutting ferrous metals in addition to concrete, asphalt, and tile
– Safer and more precise alternative to heavy equipment for cutting on job sites
Related Tools and Resources
– Angle grinder, cold saw, miter box, and ring saw as related tools
– Husqvarna Construction Floor Saw Models as a source for floor saw product range
– ‘Print Reading for Engineering and Manufacturing Technology’ by David A. Madsen as a source for further reading
– Troubleshooting guide for saw blades
– Wikimedia Commons for media related to abrasive saws Source: https://en.wikipedia.org/wiki/Abrasive_saw
This article relies largely or entirely on a single source. (December 2020) |
An abrasive saw, also known as a cut-off saw or chop saw, is a circular saw (a kind of power tool) which is typically used to cut hard materials, such as metals, tile, and concrete. The cutting action is performed by an abrasive disc, similar to a thin grinding wheel. Technically speaking this is not a saw, as it does not use regularly shaped edges (teeth) for cutting.
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These saws are available in a number of configurations, including table top, free hand, and walk behind models. In the table top models, which are commonly used to cut tile and metal, the cutting wheel and motor are mounted on a pivoting arm attached to a fixed base plate. Table top saws are often electrically powered and generally have a built-in vise or other clamping arrangement. The free hand designs are typically used to cut concrete, asphalt, and pipe on construction sites. They are designed with the handles and motor near the operator, with the blade at the far end of the saw. Free hand saws do not feature a vise, because the materials being cut are larger and heavier. Walk-behind models, sometimes called flat saws are larger saws which use a stand or cart to cut into concrete floors as well as asphalt and concrete paving materials.
Abrasive saws typically use composite friction disk blades to abrasively cut through the steel. The disks are consumable items as they wear throughout the cut. The abrasive disks for these saws are typically 14 in (360 mm) in diameter and7⁄64 in (2.8 mm) thick. Larger saws use 410 mm (16 in) diameter blades. Disks are available for steel and stainless steel. Abrasive saws can also use superabrasive (i.e., diamond and cubic boron nitride or CBN) blades, which last longer than conventional abrasive materials and do not generate as hazardous particulate matter. Superabrasive materials are more commonly used when cutting concrete, asphalt, and tile; however, they are also suitable for cutting ferrous metals.
Since their introduction, portable cut-off saws have made many building site jobs easier. With these saws, lightweight steel fabrication previously performed in workshops using stationary power bandsaws or cold saws can be done on-site. Abrasive saws have replaced more expensive and hazardous acetylene torches in many applications, such as cutting rebar. In addition, these saws allow construction workers to cut through concrete, asphalt, and pipe on job sites in a more precise manner than is possible with heavy equipment.
