Disc For Removing Rust Under The Angle Grinder
Saws with few teeth
Also for the angle grinder, in order to increase the safety of working with wood, tool manufacturers produce cutting discs with a small number of teeth.
Small diameter discs can have 3 teeth, and large ones. 4, as shown in the following photo.
These discs for angle grinders are excellent for cutting wood both along the grain and across. In addition, with the help of a saw wheel, you can cut grooves, make various cuts and spikes in the workpiece. But when working with an angle grinder, one rule should be followed: you need to install a cutting disc of the same diameter on the angle grinder, for which it is designed by the manufacturer, that is, do not exceed its dimensions. Smaller circles can be used.
Danger from working with an angle grinder with wood
The only wood operations that can be performed with an angle grinder (angle grinder) without fear are sanding and roughing, and then using special attachments. Sawing wood, of course, will work, but it is very dangerous. The internet is full of shocking photographs showing what the use of an angle grinder can lead to as a cut-off tool for wood.
The main reasons that can be made against using an angle grinder for sawing are as follows.
- This machine is not designed for sawing wood.
- Since wood is soft and tough, the saw blade can jam in it. As a result, the angle grinder often pulls out of the hands, and it flies in an unpredictable direction (in the leg, arms, stomach, etc.), causing deep wounds or amputation of the fingers. Even fatal cases have been documented.
- When cutting wood, the saw blade heats up very quickly, which causes it to begin to lose strength. At the slightest misalignment or excessive pressure, it can fly apart. Since the spindle speed of the angle grinder is large, the shards of the tool scatter at the speed of shrapnel and penetrate deeply under the human skin. The user is lucky if the fragments do not fly into the head or eyes.
- Despite the dangers of using saw blades with teeth, some users of angle grinder ignore this fact and continue to install circular blades with larger teeth or improved carbide tipped. If, when cutting wood, a hard knot or a remnant of a nail falls into it, then the tooth or soldering breaks off, clings to the next saw tooth and is thrown out at the speed of a bullet. The consequences can only be guessed at.
- Ignoring all warnings, users of grinders install a circular saw with a larger diameter than a protective cover on the device. This is the most dangerous use for an angle grinder.
If you have to cut a tree constantly, then it is better to purchase a special machine for this purpose, or use a jigsaw. As a last resort, an angle grinder can be used as a drive and make a circular out of it, fixing the device rigidly on the bed.
Angle grinder attachments for woodworking
The angle grinder, being a versatile tool for a DIY or professional, is used in a variety of cutting, grinding, roughing, etc. Sooner or later, each owner of this tool asks the question: is it possible to work with an angle grinder, and what attachments are needed for this??
Planar blade disc
A disc with several laterally protruding blades can be considered as an alternative to a plane. It is intended primarily for flat material removal. This attachment is indispensable for logging, allows you to quickly and efficiently remove bark from unedged boards or logs. It is also convenient to handle convex or form concave surfaces.
It is very difficult and time-consuming to do such work with a plane. In addition to the obvious usefulness, the disc made of high quality steel has a good resource. And dull blades can be sharpened without the use of special tools.
What are the circles for cutting wood
Despite the dangers of using an angle grinder for cutting wood, tool manufacturers still produce saw blades for it.
Cutting end discs
End discs, which are also called cutting, milling, sawing, offer material processing with a normal loading character for an angle grinder. That is, the nozzle rotates in the same way as an abrasive wheel, with the same directions of the arising forces and the mechanics of tool control.
These discs have a very important feature for beginners. The radial speed of the cutting edges is high. Therefore, when cutting grooves, sawing material, sharp load surges are possible. For example, due to its uneven density. The angle grinder can pull out of the hands, there are displacements of the disc with a shock due to a change in the nature and area of processing. However, in the hands of a master, this relatively dangerous class of cutting discs allows many operations.
- Wheeled. It is carried out as a separate product or as a nozzle for a conventional abrasive. Has a flat toothed end. The attachment serves both for milling grooves and for grinding their bottom and edges.
- Serrated studded. It is made in the format of a saw blade with teeth, has one row of projections on their side parts. The nozzle is designed to form a shallow groove. Side tines prevent deformation and reduce the risk of strong jerks during work. They also allow the foreman to move perpendicular to the cutter line of the groove, widening it.
- Serrated plane. The difference from the previous product is that the teeth are located almost on the entire lateral plane of the nozzle. The nozzle can be used when processing a flat surface, forming rectangular grooves of considerable depth, cutting thick workpieces.
It is simply impossible to list all types of attachments, adapters and accessories with installation on the shaft of an angle grinder. They allow you to significantly increase the functionality of the angle grinder. Having one tool in the workshop, the master can easily perform a large number of operations. It is not surprising that discs and attachments for angle grinders are very popular and more and more options for accessories are being developed.
Wood grinding attachments
For wood processing, in addition to cutting wheels, there are attachments specially designed for installation on an angle grinder, with which you can peel, grind, brush and mill wood surfaces.
A saw blade made using a chainsaw chain reduces the risk of injury when the tool is jammed. This attachment is designed in such a way that the chain attached to the inner disc (base) does not have a fixed fit.
This angle grinder chain disc has many modifications, and can be used to cut branches in the garden, and can also be used for rough cutting of thin boards.
In addition to cutting, the chain disc can also be used as a roughing disc, for example, for removing bark, as well as for cutting cups in logs and modeling.
The photo below shows a “dangerous” saw blade for an angle grinder, although its diameter corresponds to the protective cover of a grinder with a maximum working tool of 180 mm. There are saws with soldered and smaller diameter.
In the next photo, you can see a less dangerous version of the circular saw. It provides protection against jamming, and it is implemented due to a small set of teeth in different directions.
Overview of grinding and grinding wheels for an angle grinder
Removing paint from walls or metal surfaces, as well as removing rust, takes a lot of effort and time. Therefore, it is sometimes impossible to do without the use of a power tool. An angle grinder (angle grinder) with special grinding attachments can be used as a device to facilitate the process.
Paint Remover Tips
Old paint most often has to be removed from either walls or metal surfaces. In each case, different types of angle grinder attachments are used.
From metal surfaces
For roughing work on metal, whether it is removing a layer of old paint or removing rust, craftsmen use brushes. They look like a brush made of twisted or non-twisted metal wire inserted into a metal cup, or a disc of the same wire.
Depending on what kind of roughing work you want to carry out, the thickness and stiffness of the brushes are selected. It should be borne in mind that the metal wire used in brushes leaves scratches on the surface to be treated. Therefore, it is better not to use them to remove paint, for example, from a car body. They can only be useful for removing rust and paintwork from hard-to-reach places.
For metal-friendly roughing, it is better to use special discs made of silicone carbide fibers (XCS). they are usually black. Also, for these purposes, Clean and Strip discs, which are more resistant to wear, are used. They are blue in color, have a similar structure, but are composed of nylon threads.
This grinding wheel is available in 2 versions: for a drill and for an angle grinder. Its distinctive feature from other types of nozzles for removing paint from metal is that it does not clog and does not damage the metal in the form of scratches. They also successfully remove welding spatter, rust, various sealants and anti-corrosion coatings.
Often, flap attachments for an angle grinder are used to remove paint from metal. They represent a disc with sandpaper glued to its plane in the form of petals.
For rough surface treatment, nozzles with a large grain size are used. For finishing work, it is necessary to select a grinding wheel with fine sandpaper. Although this sanding disc will wear out quickly and become clogged with remnants of stripped paint, it can be easily repaired. How this is done can be understood from this.
From the walls
First of all, in order to remove paint from the wall, craftsmen try to use brushes with thick twisted wire (discussed above). This method is quite effective, but a lot of dust is generated during roughing work. Therefore, it is necessary to use protective equipment (goggles, respirator). It is also recommended to use a vacuum cleaner with a special attachment that completely hides the brush.
Bowl nozzles are also used to remove paint from concrete walls. the angle grinder must be held at such an angle that the paint layer is removed, but the tool does not deepen into the wall.
In addition to roughing work, this nozzle is also used for leveling surfaces, removing various sagging on the wall, for removing plaster, putty, etc.
This category of discs is designed for rough metal work. The sharpening disc can be used for cleaning welds, chamfering cut metal parts, and for sharpening tools (drills, chisels, etc.) if there is no grinder nearby.
It is worth knowing that when installing such a disc, the revolutions on an angle grinder must be set to the minimum or not exceed the values indicated on the abrasive wheel.
The grinding wheel can be distinguished from the cut-off wheel by its thickness (at least 5 mm) and by the presence of a recess in the center for more convenient use of the plane of the disc for sharpening the tool.