What is a chip saw?
A chip saw refers to a rotating blade that has carbide tips attached at regular intervals to a steel disc. It is used for cutting materials such as aluminum and wood.
In aluminum cutting, the use of tungsten carbide (hard alloy) at the cutting edge has become mainstream due to its beauty, efficiency, and safety from the perspective of the cutting surface. ▶️ Basic Elements of Structure The saw blade mainly consists of the following components: ✅ Saw Base (Blade Body): A steel disc that serves as the core part responsible for rotation and support during cutting. ✅ Carbide Tip (Cutting Edge): Cutting edges made of hard alloy attached around the saw body, designed with angles and shapes suited to the material. ✅ Center Hole (Inner Diameter): A hole for mounting on the machine spindle. ✅ Slits (Cuts): Features designed to absorb vibration and suppress thermal expansion. ▶️ Tip Material | Why is "Carbide" Used? Aluminum is a soft material that easily generates frictional heat. Therefore, the material of the cutting edge requires the following properties: ✅ High Hardness (Resistant to Wear) ✅ Heat Resistance (Resistant to Deformation and Damage from Heat) ✅ Chemical Stability (Resistant to Welding) The tungsten carbide-based "carbide tip" meets these requirements. It excels in wear resistance and lifespan, and can also be used for materials other than aluminum, such as brass, copper, and plastic.
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▶️The outer diameter refers to the diameter size of the entire blade (in mm). Main roles and effects: ✅ Affects peripheral speed (the larger the outer diameter, the faster the peripheral speed at the same rotation speed) ✅ Related to the upper limit of cutting depth (larger diameters can handle thicker materials) ✅ Increases blade rigidity, but also increases rotational load ▶️Blade thickness refers to the cutting width (kerf) that the chip saw leaves on the material during cutting. Typically around 2.0 to 4.0 mm. Main roles and effects: ✅ Affects the width of the cutting surface (yield) ✅ Affects cutting resistance and heat generation ✅ Related to vibration and blade rigidity ▶️What is a laser slit? High-quality aluminum cutting chip saws have a special cut called "laser slit" on the saw body. This serves the following roles: ✅ Relief of thermal expansion: Suppresses blade elongation caused by friction heat generated during high-speed rotation. ✅ Vibration reduction: Suppresses resonance and chatter during cutting, allowing for quiet and stable cutting. ✅ Improved accuracy: Enhances cutting surface accuracy by reducing deflection and distortion. In many cases, these slits have complex shapes such as S-shapes or Y-shapes, and by injecting special resin into them, the effects of noise and vibration suppression are enhanced.
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▶️ Points to Note and Selection Tips ✅ If the outer diameter is increased too much, it is likely to reach the upper limit of rotation speed → Check motor output and machine specifications ✅ If the blade thickness is made too thin, it is prone to vibration and deflection → Balance with the thickness of the material and resistance to pressure ✅ For precision cutting, a combination of thin blade + multiple teeth + high rigidity blade is effective ▶️ Compatible Blade Diameters for Okumura Machinery Products | Model | Compatible Blade Outer Diameter | Notes | |----------------------|---------------------------------|-------------------------------------| | ACA Series | φ405mm | Suitable for cutting profiles and sashes | | UCA Series | φ510mm | Suitable for cutting profiles and sashes | | URKM2500J | φ455〜525mm | For general-purpose medium-thick plates | | URKG Series | φ560〜810mm | For extra-thick plates (split blade structure) | ▶️ Summary The outer diameter and blade thickness are not just dimensions; they are important parameters that affect "cutting quality, efficiency, and safety." By selecting them in a well-balanced manner according to the purpose and material, efficient cutting without waste can be achieved. If you have any questions, free consultations are available at "OKUMURA SELECT"!
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▶️ Why is "super hard" used? ✅ High hardness (resistant to wear) ✅ Heat resistance (not easily deformed or damaged by heat) ✅ Chemical stability (not easily welded) The "super hard tips" made of tungsten carbide meet these criteria. They excel in wear resistance and lifespan, and can be used with materials other than aluminum, including brass, copper, and plastic.
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The carbide tip saw has a high hardness and is resistant to wear, so its cutting efficiency is really great." "I see. Actually, there’s a video of high-speed cutting of aluminum sheets using the URKM2500J, so you can really understand how to use the tip saw and how smooth the cutting is. You should definitely check it out." "Wow, I want to see it! Where can I find it?" "You can check it from the related videos. The cutting process is very informative, so definitely take a look!
