How To Sharpen Scissors? How To Quickly Sharpen Scissors With A Bar Or Needle At Home? Sharpening Angle

2024 Author: Beatrice Philips | [email protected]. Last modified: 2023-12-16 05:33

Scissors are an integral part of every person's life. Scissors are always needed: they cut fabric, paper, cardboard and many other objects. It is quite difficult to imagine your life without this accessory, but, like any cutting device, scissors can become dull.

Peculiarities

It's no secret that any small tools that are used for cutting need to be sharpened from time to time. Aside from kitchen knives, scissors are among the most commonly used household cutting tools. It is recommended to sharpen with your own hands only household tools that need processing due to frequent use.

As for scissors for manicure, thinning, dressmaker's tools, it is recommended to use a professional master with the appropriate equipment to process their blades. Specialists use special electrical attachments with replaceable attachments for specific types of cutting tools . Of course, you will have to pay for the services of a specialist, but if we are talking about expensive professional tools, it is better to trust a professional.

If scissors are used in everyday life, then simpler methods that are often used by many owners will do.

Scissors are used by many professionals: gardeners, tailors, manicurists, hairdressers, cooks, and so on. There are even similar tools for cutting sheet metal and metal tiles. The main feature of any accessory is two blades . Cutting is done with both blades, for this reason, the methods of sharpening them are not the same as those used for a single knife blade.

The ways

All types of scissors are sharpened in different ways, depending on the scope of their application and the design of the blades, using specialized devices or manually. Each method has its own characteristics, for example, when using coarse abrasive material, a rough mark remains on the metal of the scissor blades, which makes the cut even better.

The halves of the scissors must adhere to one another so that there is practically no gap, otherwise they will cut unevenly and poorly. If there is a play in the blades, it is necessary to bring them together with caution, and if the half-scissors are loosened, no great effort is required when squeezing. In the absence of special equipment, use the means at hand (with an ordinary bar, a file, even sewing needles and food foil are used).

File and vise

If the use of a vise and a file is available to sharpen the scissors that are used to cut metal sheets, then the following sequence of actions must be followed:

1. the tool is disassembled into its component parts;
2. one half of the tool is clamped in a vice so that the side from which the work is planned is on top;
3. the working stroke of the file should be slow and exclusively "away from you";
4. to sharpen the second half of the scissors, the steps are repeated.

Machine

Using an electric sharpening machine, you can sharpen any blade with a minimum error. Approximate sequence of actions:

1. the guide is set to the required angle;
2. the circle rotates towards the edge of the scissors;
3. practice shows that it is not necessary to carry the edge of the blade over it more than three times so that it is sufficiently sharpened;
4. as an improvement of the circle, you can purchase or independently install a device that fixes the scissors so that sharpening occurs in compliance with a certain sharpening angle, which will increase productivity;
5. with this method of sharpening, additional dressing of the blades is not required.

In the case when small transverse defects of the blade are formed, it is recommended not to correct them - they will only help to cut.

Grindstone

Sharpening stones have two sides - one coarse, the other fine-grained. As a rule, sharpening starts from the coarse side.

When working with whetstones, the following sequence of operations is used:

1. it is necessary to wet the surface of the grindstone;
2. sharpening of the tool (working stroke) on the coarse-grained side of the grindstone should occur exclusively with movements "towards you", starting from the tip of the scissors to the ring, always with the same angle at which the blades of the scissors were sharpened during their manufacture;
3. all movements "towards oneself" are performed with the application of force, and with reverse movements, there should be no pressure;
4. then sharpening is repeated in the same way, using the reverse, fine-grained side of the stone;
5. Finally, it can be helpful to use fine sandpaper to remove small burrs.

Sandpaper

If you have a small piece of sandpaper, you just need to fold it in several layers, rubbing side up. Under these conditions, you will need to cut the sandpaper approximately twelve strips . After the paper has been cut, the remaining sandpaper crumbs can be removed with a damp towel.

Needle

Another peculiar way of sharpening is the point of scissors with a needle. Here is the sequence of actions when using such a rather unusual sharpener:

1. the needle must be hard, scissors should not bite it (for this, the blades are opened, the needle is placed as close as possible to the connection of the halves of the scissors, and they try to cut it);
2. a strong needle will not be able to bite, and as a result of pressing it moves from the hinge to the sharp end of the scissors;
3. for factory-sharpened scissors, repeated repetition of such actions will give a good sharpness of the blades.

An additional method for sharpening scissors at home is cutting aluminum foil . To do this, the food foil is folded and cut into small pieces. For this purpose, fine-grained sandpaper can also be used. The "bottle method" can also be called relatively unusual. There is probably a glass bottle at home that you can try to cut off the throat with scissors. This will also give the blades a sharp edge.

As for ready-made tools for sharpening, they can be purchased in retail chains, although, as a rule, they are intended for a specific type of scissors - they are not universal, unlike little scissors.

At what angle to sharpen?

It's no secret that different scissors are used for different purposes. For example, in order to quickly cut thin materials (paper, fabric), their blades are sharpened at an angle of up to 60 degrees, and in the case of cutting a hard material, they increase by 10-15 degrees.

There is one rule here: changing the factory angle at which the scissors were sharpened is strongly discouraged - the instrument is likely to be irreparably damaged;

General recommendations

For high-quality sharpening of scissors or other cutting tools, it is highly recommended to remove the top layer of material until a sharp cutting edge is formed.

For home sharpening methods, a number of examples can be cited

• When the scissors become uncomfortable to use, and they begin to cut materials not well enough, it is first of all recommended to consider their hinge. Both parts of the scissors should always have a tight, good connection, and loosening the fastening is likely to have a negative impact on the correct operation of the tool. The mount is either riveted or screwed. You can always tighten the mount with a screwdriver. In the case of riveting, you will have to apply the rivet compression.
• After the attachment is secured, the blades are checked to make sure they are not nicked. When working with thin layers of materials, the serrations will lead to the setting of the blades, which will make the cut uneven;
• The second common cause of an uneven cut is foreign build-up on the blade surfaces. It is recommended to clean them with alcohol solvents before starting sharpening.
• If such preparatory actions have not restored the functioning of the scissors, you will have to start sharpening.

Sharpening thinning scissors is not for a home craftsman, sharpening them is one of the most difficult operations . The fact is that they have different blades - straight and serrated, moreover, their teeth have a rather complex shape. In this case, it is recommended to contact a specialist working on high-quality equipment with laser guidance.

Manicure scissors also have the unpleasant property of losing their sharpness, but in order to sharpen them, you have to use diamond-coated sharpening tools. In this case, it is advised to contact a specialist, since you will need to carefully monitor the preservation of the angle at which the scissor blades were originally sharpened. Here's a rough description of the process:

1. scissors open wide;
2. install (fix in the clamp) the processed blade on a stable surface;
3. sharpen cutting edges - from the end of the blade, without changing the direction of sharpening;
4. to polish the blades, use a fine-grained grindstone - they "pass" the surface repeatedly.

If your nail scissors have rounded ends, sharpening yourself is unlikely to give the desired result. For such manicure accessories or special thinning tools, the services of a specialist and a machine are required, equipped with a laser device for adjusting the sharpening angles.

Stationery, gardening and some locksmith tools are sometimes not used for years, they are not used for a very long period, which cannot be said about the manicure accessories of any woman - they have work every day. There are several tips to extend their life.

• Some sources advise to frequently disinfect the manicure tool by boiling it in plain water. This is not a good recommendation. The reason is that the scissors will rust quickly. Today, there are no problems in visiting any pharmacy that offers a wide selection of inexpensive antiseptic preparations that will help disinfect the blades without any temperature extremes.
• It is recommended to lubricate all joints with oil or other lubricants at least every six months. It is not difficult to do this, you just need to apply a small amount of a lubricant (for example, olive, castor, vegetable oil) to the hinge area and work actively with scissors - this will help the oil penetrate into the friction area of the tool halves. As a result, possible corrosion will be prevented.
• Some scissors are not designed for disassembly, so the halves should not be separated, even for lubrication. Not all of them can be connected on their own after disassembly.
• Scissors are used in accordance with their purpose: with hairdressing scissors, hair is cut, cuticles are cut with manicure scissors, tree branches are trimmed with garden scissors and plants are trimmed. If you use a specialized tool not for its intended purpose, most likely, its blades will quickly become dull.
• The entire thickness of the blade is not grinded, it is necessary to maintain a special angle, which is provided for ease of cutting. When sewing the entire web, the scissors simply cannot cut the material.
• Also, the scissors will not cut if the wrong seam angle is selected.
• Sharpening should always be preceded by an edge check. Burrs or nicks are the cause of poor performance.
• Cleaning the blade surface is also an important part of preparing for sharpening. For example, pieces of duct tape (tape), which often have to be cut, adhere to the blades, obscuring the cutting surfaces. The tape can be easily removed with alcohol or solvent, this will help restore the cutting ability of the scissors.

As a rule, a tool for cutting metal is made using materials of high strength and degree of hardness, for this reason, the sharpening angles of the scissor blades must be quite high: 75 degrees or more . Such a tool has to be processed in the same way as any other cutting unit. For this purpose, both a needle and fine-grained sandpaper are suitable.

Thus, the blade is sharpened in a short time, but you should not expect that this will last long.

Sharpening quality can be achieved by using hard abrasive media (for example, a file that has a higher degree of hardness compared to the metal of the scissors).

In this case, the tool must be disassembled, one half is fixed in a vice in such a way as to sharpen the tool, which is in the "point from itself" position. As already mentioned, the working stroke is done with a file, without haste, the direction "away from you " … The scissors are sharpened until the blade is perfectly flat. Accordingly, all the same operations are carried out for the other half of the scissors.

When the sharpening is over, it is recommended to treat both halves of the tool with an anti-corrosion compound, which allows to increase the operating time of the tool without resorting to further sharpening. After processing, the halves of the scissors are reattached to each other and they are ready to use.