What is HSS Saw Blades?
The HSS saw blade is made of high speed steel material as a whole. High-speed steel is also known as HSS, a type of alloy tool steel. The characteristics of high-speed steel include the ability to withstand high temperatures and retain its durability, hardness and abrasion resistance, even when used at high speeds. Strong and durable and is mainly used for cutting for cutting metals or wood.
Features and advantages of HSS material：
High-speed steel used as saw blade material usually contains 18% tungsten，4% chromium and 1% vanadium
Hence, this is why this is also called 18-4-1 high-speed steel. These elements combine to create exceptionally hard carbides with abrasion resistance. This in turn maintains the edge of the cutting tools, even in high-temperature environments.
Adding different elements can give high-speed steel different characteristics. For example, cobalt high-speed steel, or rather, adding cobalt, gives this steel resistance to even higher temperatures than normal. Adding more vanadium to high-speed steel removes slag and impurities, which increases the steel’s abrasion resistance. Combining molybdenum gives high-speed steel even greater cutting ability and toughness.
High-speed steels can generally retain their cutting properties at temperatures:
1112°F to 1148°F, or 600°C to 620°C – some even higher。
Compared with solid carbide saw blades, it has better toughness and can be manufactured into larger diameters with competitive price.
Disadvantages of HSS material for saw blade：
-
Low bending strength
-
Poor impact toughness
-
High brittleness
-
Low impact resistance
-
Low vibration resistance
-
Must be strengthened by heat treatment
-
Low cutting speed
Why ToolingBox?
Accroding to the different applictions,ToolingBox can supply TBHSaw-G/H/S series HSS circular saw blades to our customers across many industries.We only use super high-speed steel manufactured by steel plants that are ISO 9001 approved. This guarantees the constant quality of the products supplied, which always come with a casting certificate and a detailed chemical analysis.
We have all standard items ready from stock, and we can also manufacture special tools to meet specific customer requirements.
1. TBHSaw-G™ Series -HSS DMO5 Cut Off Circular saw blade
This is the most standard product for cutting ordinary steel <550 Mpa. All projects are made of high speed steel with high content of tungsten and molybdenum. The composition of these elements ensures very high hardness and appropriate toughness after heat treatment. The correct percentage of tungsten is essential to create a correct amount of very wear-resistant carbides to extend tool life at high temperatures. Tungsten also increases the mechanical life of the tool, increases the cutting performance, and prevents the expansion of austenite grains. Tungsten is also essential to ensure the formation of a fine martensitic structure, which also increases tool toughness and maintains high mechanical resistance. Vanadium is the element that forms the hardest and most abrasive carbide of all other alloys.
P.V.D Coating with 3 micron depth titanium base, which is obtained at a process temperature of approximately 490°C. It guarantees a coefficient of friction of 0.47 and a maximum oxidation temperature of 640°. The hardness of the coated layer reaches 2,850 Vickers (Hv 0.05). Its low thermal conductivity guarantees a high heat shield which protects the hardened steel base.This coating is suitable to cut medium steel and must always be used with plenty of lubrication. It is not suitable for copper, brass or bronze cutting.
2. TBHSaw-H™ Series -HSS Co5 Cut Off Circular saw blade
This is our standard product for cutting stainless steel and medium hardness of 550-700 MPa. This is a high speed steel with a certain proportion of cobalt added to all the alloying elements already present in HIGH speed steel DMo5. Cobalt does not form carbides, but stabilizes critical grain growth and, most importantly, maintains high hardness at operating temperatures. This property is very important for cutting very thick materials such as stainless steel and very hard metals with high cutting temperatures. The range of production specifications and HSS Dmo5 products are the same.
Multilayer P.V.D coating with 2.5 micron depth. It is obtained from a plasma with a particular titanium, carbon, and acetylene composition. This composition gives the coating a very low friction coefficient of 0.22 together with a considerable hardness of deposited layer 3,200 Vickers. (HV 0.05). These two characteristics guarantee the circular blades will be high performance with low wear, and also ensure an improvement in the cut’s finish. It is a coating with an oxidation temperature of 470°C and therefore must be used with abundant lubrication. It is particularly suitable for cutting stainless steel, titanium, and hardened steel, along with brass and copper.
3. TBHSaw-S™ Series -HSS Super Cut Off Circular saw blade
This is a updated product for a special saw blade, using high performance cutting machine to improve the cutting steel hardness of 650-850 MPa solid bar and pipe sawing solution is constantly improving and technological upgrading. This product recommends cutting carbon steel and stainless steel.
P.V.D Multi-layer coating with a thickness of 2,5 microns, opaque grey coloured. The particular composition and the innovative mix of noble elements developed by our R&D achieves a hardness which is higher than 3,520 Vickers (Hv 0,05), unattained by any other coating. This new coating is very tenacious and very resistant to high temperatures. These features are very important to guarantee long-life when using circular saw blades with high speed parameters. It is highly recommended for circular saw blades to work with critical cutting parameters on high performance machines. The friction coefficient of 0,40 allows the use of circular saws both for cutting without coolant, or micro-nebulization, as well as for cutting with plenty of coolant. It’s suggested for cutting high alloy steels up to 1000 N/mm2, stainless steel and all material developing a high thermal energy.
ToolingBox Coating List for HSS Saw Blade:
Tooth Shape Introduction of ToolingBox:
In tooth production ToolingBox uses only CNC machines with a CBN grinding wheel to obtain a very low surface roughness that guarantees excellent chip removal, and avoids material sticking to the cutting surface of the gullet. Our technicians can advise on the best tooth shape for each specific application.
Tooth shape A is normally used on fine toothing (<T3) for applications such as brass alloy cutting, jewellery and screw slotting.
Tooth shape B is normally used for thin-walled pipes and the cutting of structural shapes, especially where chip removal is not an issue.
Tooth shape AW, unlike type A, is alternately bevelled, thus optimizing chip shredding.It is particularly suitable for precision cutting.
Tooth shape BW is primarily used for cutting pipes and sections.The tooth is alternately bevelled at 45°, breaks the chip in two and guarantees good chip evacuation.
Tooth shape C is used for solid sections or very thick pipes. The chip is shredded into three parts due to the presence of both a finishing tooth without chamfer and a pre-cutting tooth (longer than 0.25 mm) with two chamfers on each side.
Tooth shape BR has been successfully introduced for cutting pipes. It has double the number of cutting edges and guarantees a
higher number of cuts and a better finish to the section. It also improves tool durability by about 20% because it reduces
the removed section per each single sharpening.
-
Our Warehouse
-
Application
