In the wood furniture production process, to use all types of machinery and equipment, which is directly in contact with the timber and cutting or engraving and milling and play the role of the various tool is on the machine, the saying goes Preparation may quicken the work In order to use all types of machinery, you must first understand the tools used in the process.
Sawing is an important process for furniture production. Whether it is plate or solid wood furniture, it is necessary to carry out the first material . This will require a variety of cutting equipment and saw blades. The selection and use of saw blades will be followed. Processing has an important influence, so it is also important to understand the blade and understand its use and maintenance .
According to the different cutting materials , the saw blade has different materials, generally can be divided into high-speed steel saw blade (HSS saw blade), carbide saw blade , insert alloy saw blade , diamond saw blade and so on. Woodworking saw blades are generally selected carbide saw blades , woodworking products are the most commonly used cutting tools, carbide saw blade quality and the quality of processed products are closely related.
Tungsten-cobalt (code YG) and tungsten-titanium (code-named YT) are commonly used for hard alloys. As tungsten-cobalt carbides have better impact resistance , they are more widely used in the wood processing industry. The model used in wood processing is YG8-YG15. The number behind YG indicates the percentage of cobalt content . The cobalt content increases , the impact toughness and bending strength of the alloy increase , but the hardness and wear resistance decrease . According to the actual situation to be selected.
Tooth
Woodworking saw blades have a variety of different tooth shapes . Commonly used tooth shapes include left and right teeth , flat teeth , stepped teeth , inverted trapezoidal teeth , and dovetail teeth , as well as industrial grades such as three left and one right and left and right left and right flat teeth. Wait.
Among them, the left and right teeth are most widely used . The cutting speed is fast and the dressing is relatively simple . Suitable for cutting and cross-saw all kinds of soft and hard wood profiles and density boards, multilayer boards, particle board, etc. Left and right tooth saw blades with negative rake angles are often used for sawing of veneers due to their sharp saw teeth and good sawing quality.
Ladder flat tooth is a combination of trapezoidal teeth and flat teeth , grinding is more complex , reducing the phenomenon of veneer cracking when sawing, suitable for all kinds of single and double veneer panels , fire board sawing.
The inverted ladder teeth are often used in sawing the bottom slot saw blade . When sawing the double-faced artificial board, the slot saw adjusts the thickness to complete the bottom slotting process, and then the main saw completes the sawing process of the plate to prevent the saw from cutting. There is a collapse in the mouth.
The flat-tooth kerf is rough, cutting speed is slow, and grinding is the simplest . It is mainly used for the sawing of ordinary wood and has a low cost, or it is used to slot a saw blade to keep the groove bottom flat.
The thinner the blade is theoretically the better , because kerfs are a drain . The material of the alloy saw blade base material and the process of manufacturing the saw blade determine the thickness of the saw blade, the thickness is too thin, the saw blade is easy to shake when working, and the cutting effect is affected. The choice of blade thickness should be considered from the stability of saw blade work and sawing material . The thickness required for some special-purpose materials is also specific and should be selected according to equipment requirements , such as slotted saw blades and scribe saw blades.
The saw blade diameter is related to the sawing equipment used and the thickness of the sawing workpiece . Small-diameter blade, cutting speed is relatively low; diameter of the saw blade and saw blade sawing equipment requirements will be higher, while cutting efficiency is high. The outer diameter of the saw blade is selected according to different sawing machine models.
The diameters of the standard parts are: 110MM (4 inches), 150MM (6 inches), 180MM (7 inches), 200MM (8 inches), 230MM (9 inches), 250MM (10 inches), 300MM (12 inches), 350MM ( 14-inch, 400-mm (16-inch), 450-mm (18-inch), 500-mm (20-inch), etc. The bottom slot saw blade of the precision panel saw is designed to be 120MM.
In general the more the number of teeth of the saw blade, the more cutting edge in unit time, the more good cutting performance, but more than required number of cutting teeth carbide saw blades price will be high, but too close serrated teeth The smaller the amount of chipping , the easier it is to cause the saw blade to generate heat . In addition, if the amount of saw teeth is too large, the amount of cutting per tooth is small, which will increase the friction between the cutting edge and the workpiece and affect the service life of the blade. Usually the tooth pitch is 15-25mm, a reasonable number of teeth should be selected according to the sawing material .. .... Click here to see More>>>
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