Hair cutting shears and scissors are usually made out of steel. But those scissors which are for more specific purposes are made from other metal alloys as well. For example, scissors meant to cut the explosive substance cordite cannot produce sparks. Along the same lines, scissors meant to cut magnetic tape cannot interfere with the tape\u2019s magnetism.<\/p>\n
Steel scissors can be divided into two basic groups.<\/p>\n
1. To make hair cutting shears<\/a>, the first step is to make the blanks. The blanks are the two halves of a pair of scissors. Blanks may include the blade and handle or just the blade. If there is a handle and a blade, the metal handle is welded to the blade or the plastic handle is attached to the blade. Some scissors made from blanks are formed by using cold stamping or molding. Quality scissors generally are made from blanks, formed by drop forging.<\/p>\n 2. When the blanks of the scissors are ready, they are then trimmed to the proper shape by cutting away any excess material. Trimmed blanks are then hardened by heating and rapid cooling in cold air, water, oil, or some other substance. The heating and cooling temperatures vary depending on the type of steel and the desired features of the blade. A hole, which will allow the two separate blades to be attached to each other, is drilled through the blank.<\/p>\n Note: The Rockwell Hardness Scale (HRC) is used to measure the hardness of the scissors. The higher the number, the harder the metal. Usually, hair scissors should have a minimum of 56 HRC while the ideal would be around 60 to 64 HRC.<\/p>\n 3. After the initial heating and cooling come a second heating and cooling, known as tempering. Tempering gives a uniform hardness to blanks which improve their durability and longevity. This repeating heating and cooling cause the blanks to warp. For that reason, the blanks are peened, meaning that they are straightened by light tapping with a hammer.<\/p>\n 4. The blank is ground into a blade, with a rapidly moving sanding belt or abrasive wheel used to apply its edge. This belt of wheel grinds away the excess steel, forming the sharp edge of the blade. During grinding, the blade is cooled with different liquids. These fluids keep the blade from overheating or warping. After grinding, finer belts and\/or wheels are then used for polishing.<\/p>\n 5. The handles are made along with the blades. As mentioned before, handles generally form part of the blank but are quite often made from a metal alloy or plastic as well. Metal handles are welded to the blades. Plastic handles are simply attached to the blades by inserting the ends of the blanks into the hollow slots in the handle.<\/p>\n 6. Polished blades are attached to each other with a screw or a rivet inserted through the drilled holes. Screws and rivets are usually lubricated to ensure flow and silent cutting. Screws ensure the possibility of tension adjustment possibilities. Rivets do not allow for adjustment, which is why rivets are used for less expensive scissors.<\/p>\n 7. In the end, the scissors may be painted, plated with chrome, or plated with nickel to make them rustproof.<\/p>\n 8. Some manufacturers of high-quality shears perform quality control to ensure that there is the proper alignment of both blades to provide a smooth cut. Scissors are tested on tough synthetic fabrics for sharpness and strength.<\/p>\n In the end, the consumer is responsible for maintaining the quality of their shears. Only use them to cut appropriate materials. Oil and sharpen them regularly. Store them in a closed position. This will ensure that your shears remain fit for use for a long time.<\/p>\n One of the most important factors to consider when choosing your hair cutting shears is the blade type. This is especially true for professional use because the blade will have a direct effect on your performance and ability to cut hair. Innovative manufacturing techniques have resulted in new types of blades. There is now a great variety of types of hair cutting shears with different blades on the market.<\/p>\n The three most common blades used by professional hairdressers are:<\/p>\n Hair cutting shears and scissors are usually made out of steel. But those scissors which are for more specific purposes are made from other metal alloys as well. For example, scissors meant to cut the explosive substance cordite cannot produce sparks. Along the same lines, scissors meant to cut magnetic tape cannot interfere with the tape\u2019s magnetism. Types of Steel Scissors Steel scissors can be divided into two basic groups. Stainless steel scissors usually have a plastic handle fitted to the metal blades. This plastic handle is generally made from a strong and lightweight material such as ABS plastic. Stainless…<\/p>\n","protected":false},"author":1,"featured_media":318,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[61,62,64,63,65],"yoast_head":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\t\n\t\n\n\n\n\n\t\n\t\n\t\nTypes of Blades<\/h2>\n
\n