Shenzhen Oyea Machinery Co., Ltd.: 01/05/23

2023年1月5日星期四

Four Distinctions Between Tungsten Carbide And HSS Cztery rozróżnienia między węglikiem wolframu a HSS

HSS, which is the abbreviation of high-speed steel, is a standard material for metal cutting tools in the past time. When the tungsten carbide had been created, it was considered to be a direct replacement for HSS with good toughness, excellent wear resistance and extremely high hardness. Cemented carbide is usually compared to HSS, with similar applications and high hardness.

Performance
Tungsten carbide
The cemented carbide is a powder of a micron-magnitude metal carbide, which is hard to melt and has high hardness. The binder is made with cobalt, molybdenum, nickel, etc. It is sintered under high temperature and high pressure. Tungsten carbide has a higher high-temperature carbide content than high-speed steel. It has an HRC of 75-80 and excellent wear resistance.
tungsten carbide strips
Advantages
1. The red hardness of Tungsten carbide can reach 800-1000°C.
2.The cutting speed of cemented carbide is 4-7 times higher than the high-speed steel. Cutting efficiency is high.
3.The mold, measure tools and cutting tools made by tungsten carbide will have 20-150 times higher service life than alloy tool steel.
4.Cemented carbide can cut material with 50 HRC.
Disadvantages
It has low bend strength, poor impact toughness, high brittleness and low shock resistance.
HSS
HSS is high-carbon high alloy steel, which is a tool steel with high hardness, high wear resistance and high thermal resistance. In the quenching state, iron, chromium, partial tungsten and carbon in high speed steel form a extremely hard carbide, Improving the wear resistance of steel. The other partial tungsten is dissolved in the matrix, increasing the red hardness of steel, up to 650°C.
HSS
Advantages
1.Good strength, excellent toughness, sharp cutting edge.
2. Stable quality, generally adopted to make small tools with complex shapes
Disadvantages
The hardness, service life and HRC are much lower than tungsten carbide. At a high temperature of 600°C or above 600°C, the hardness of HSS will decrease significantly, and it can’t be used.
Manufacturing Methods
Tungsten carbide
The manufacturing of cemented carbide is to mix tungsten carbide and cobalt in a certain proportion, pressurize into various shapes, and then semi-sintering. This sintering process is usually carried out in a vacuum furnace. It is placed in a vacuum oven to complete the sintering, and at this time, the temperature is approximately 1300°C and 1,500°C.
tungsten carbide brazed tips
The sintered tungsten carbide forming is to press the powder into a blank and then is heated to a certain degree in the sintering furnace. It needs to keep the temperature for a certain time and then cool down, thereby obtaining the desired carbide material.
HSS
The heat treatment process of HSS is more complicated than cemented carbide, which must be quenched and tempered. During the quenching, due to the poor thermal conductivity, it is generally divided into two stages. Preheat first at 800 ~ 850 °C, so as not to cause large thermal stress, then quickly heat to the quenching temperature 1190°C to 1290 °C which is distinguished when the different grades in the actual use. Then cool down by oil cooling, air cooling or gas-filled cooling.
Applications
Tungsten carbide
Tungsten carbide can also be used as rock-drilling tools, mining tools, drilling tools, measuring tools, carbide wear parts, cylinder liner, precision bearings, nozzles, hardware molds such as wire drawing dies, bolt dies, nut dies, and various fastener dies, which have excellent performance, gradually replacing the previous steel mold.
tungsten carbide wear parts
HSS
HSS has good process performance with a good combination of strength and toughness, therefore mainly used to manufacture metal cutting tools with complex thin edges and good impact-resistant, high-temperature bearings and cold extrusion molds.
Material Ingredients

Tungsten carbide
The cemented carbide has a main component of a metal high hardness refractory carbide with WC, TiC micron powder, cobalt (CO) or nickel (Ni), molybdenum (MO) as the binder. It is the powder metallurgical product sintered in a vacuum furnace or hydrogen reduction furnace.
HSS
High speed steel is complex steel, with a carbon content generally between 0.70% and 1.65%, and 18.91% Tungsten content, a 5.47% Chloroprene rubber content, a 0.11% Manganese content, which is very close to the subsequent W18CR4V component.
Summary
The tungsten carbide tool will be the best choice for most typical metal processing. The cemented carbide has a better performance than HSS, with high cutting speed, long service life and excellent wear resistance. High speed steel is more suitable for tools with complex shapes.

Shenzhen Oyea Machinery Co., Ltd. production Aristo Axyz Atom Benz Blackman & White Bullmer Comagrav CombiPro Data Technology DRD Dierre Dyss Ecocam Elcede Elitron Esko Kongsberg Gerber Graphtec Gunnar Haase iEcho Science & Technology JWei Kasemake Krause Kuris RuiZhou Ronchini Lasercomb Protek Marbach Mécanuméric Mimaki Misomex Multicam RolandSei Summa Valiani Wild Zünd...Tungsten Steel Blades

High-Speed Steel vs Tungsten Steel Hochgeschwindigkeitsstahl vs. Wolframstahl Stal szybkotnąca kontra stal wolframowa

High-Speed Steel vs Tungsten Steel

High-Speed Steel vs Tungsten Steel
High-speed steel vs tungsten steel, what's the difference? If you want to find the answer to this question, then you've come to the right place. In this article, we will take a closer look at the differences between high-speed steel and tungsten steel.
High-Speed Steel vs Tungsten Steel
What is high-speed steel?
High-Speed Steel (HSS) is a tool steel with high hardness, wear-resistance, and heat resistance. HSS is a kind of complex alloy steels, which contains carbide-forming elements such as tungsten, molybdenum, chromium, vanadium, and cobalt, and the total amount of alloy elements is about 10-25%.
HSS is mainly used to manufacture complex thin blade and impact-resistant metal cutting tools, as well as high-temperature bearing and cold extrusion die, such as a turning tool, drill bit, hob, machine saw blade and high demand die, etc. It can still maintain a high hardness in the high speed cutting under the condition of high temperature (500 ℃), which is the most main characteristic of high-speed steel, the red hardness.
After quenching and low temperature tempered, carbon tool steel has a high hardness at room temperature, but the hardness was a sharp drop in when the temperature higher than 200 ℃. When the temperature reaches 500 ℃, the degree of hardness was similar to annealing state, completely lost the ability to cut metal, which limits the application of carbon tool steel as a cutting tool. The high-speed steel makes up for the fatal defects of carbon tool steel due to its red hardness.
What is tungsten steel?
Tungsten steel (hard alloy) has a series of excellent properties such as high hardness, wear resistance, strength and toughness, heat resistance, and corrosion resistance. Especially, its high hardness and wear resistance also remain stable even under the temperature of 500 ℃, and there is still high hardness at 1000 ℃.
The main components of tungsten steel are tungsten carbide and cobalt, which account for 99% of all the components and 1% are other metals. Tungsten steel, also known as the hard alloy, is regarded as the teeth of modern industry. Tungsten steel is widely used as the material, such as turning tool, milling cutter, drill bit, boring cutter, etc. The cutting speed of the new cemented carbide is hundreds of times that of carbon steel.
Tungsten steel is a sintered composite material containing at least one kind of metal carbide, and tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, and tantalum carbide are common components of tungsten steel. The grain size of the carbide component is usually between 0.2-10 microns, and the carbide grains are bonded together with metal binders. Bonding metals are generally iron group metals, commonly used are cobalt, nickel, so there are tungsten-cobalt alloy, tungsten-nickel alloy, and tungsten-titanium cobalt alloy.
The sintering process of tungsten steel is to press the powder into the blank, then heat it into the sintering furnace to a certain temperature (sintering temperature), keep it for a certain time (holding time), and then cool it down, so as to obtain the tungsten steel material with required properties.

How Is Tungsten Carbide Currently Being Used?

All throughout the world, there are numerous applications where metal compounds are being used. But compared to any one of them,

tungsten carbide possesses the most unique attributes. Frequently used in jobs such as building applications, precise grinding and milling, jewelry production, and more, the addition of these materials can help create a pitting, scratch, rust, and heat resistant alloy.
The Milling Industry
For the manufacture of some mill inserts, finish mills, and other mill merchandise, tungsten carbide is used. In the milling and grinding industry, For applications that yield everything from the finest powder to coarsely grated material, tungsten carbide is preferred because it can be simply molded while remaining extraordinarily tough.
Tungsten Carbide’s Newest Application
Every day, tungsten carbide gains popularity for its newly built jewelry production reputation. In the crafting of jewelry such as earrings, pendants, and rings, it is a desirable alloy thanks to its extreme hardness. Additionally, it is stunningly gorgeous when polished appropriately!
All the rage, as of late, are engagement and wedding rings made from tungsten carbide. Because, compared to gold, it is less expensive, it is exceptionally popular with frugally minded individuals or those on a tight budget.
The Mining Industry
Possibly more than any other industry, numerous building applications use drilling tools created from tungsten carbide. Cutting tools, drill bits, and other mining equipment utilizes approximately 65% of today’s tungsten carbide supply. Due to its resistance to wear and tear, as well as its hardness, in mining applications, it is the preferred material – even over stainless steel.
The hardness of tungsten carbine is only exceeded by diamond. In some applications, the hardness offered coupled with its conductivity make tungsten carbide even more alluring. What’s more, it can be melded with other metals, sharpened to precision, and molded into seemingly limitless shapes.
Tungsten Carbide Combinations
Composite supplies and specialized alloys are created when tungsten carbide is combined with other metals. To make components that can be utilized in applications such as the aeronautical market, radiation shielding supplies, industrial gear generating, electronics, and more industrial building situations, it may be joined with copper, silver, iron, and nickel.
Further Tungsten Carbide Benefits
Periodically, regardless of the benefits of tungsten carbide, components made from it will eventually need replacing. The good news here is that carbide is extremely recyclable. There are, in fact, recycling facilities that do just that. These days, if something is recyclable, it is preferable, with many industries concentrating highly on “going green”.
The mechanical and thermal attributes of tungsten carbide, combined with its durability, high wear resistance, and other attributes make it one of the most desirable materials in the industrial marketplace.

Tools for Zund digital cutting systems

Tools

Universal Drawing Tool (UDT) - For drawing lines with a pen. Useful for labeling parts.

Universal Cutting Tool (UCT) - For most cutting operations. Uses a variety of inserts. Does not oscillate, drags blade through material.

V-Cut Tool (VCT) - For cutting angles in soft material. As this tool drags the knife through the material, it is not suitable for very thin material as it lifts the material as it cuts, nor for very thick material, as the material begins to crush rather than cut. 1/8" - 3/18" foam core is a reasonable material range for this tool.
Electric Oscillating Tool (EOT) - For soft materials such as cardboard or foamcore. Good when UCT excessively drags or deforms the material.

Pneumatic Oscillating Tool (POT) - like EOT but with greater blade throw. Good with thicker materials that the EOT has trouble cutting cleanly. The POT cuts a little cleaner than the EOT, but because it is pneumatic and runs off the same compressor as the Onsrud and woodshop air hookups, it cannot be used while the others are running. Only use the POT if the Onsrud is not currently operating.

Driven Rotary Tool (DRT) - Uses a rotating circular blade. For fabrics and fabric like materials. Minimizes force acting on the material, but has the greatest overcut due to the blade geometry.

Router Module (RMA) - For routing or engraving materials that cannot be cut with a knife. Uses router bits whose diameter also limits depth of cut, potentially. Small parts may require bridges to maintain connection to surrounding material while being cut.
CTT
PTT

Tools for Zund digital cutting systems

Tools

Universal Drawing Tool (UDT) - For drawing lines with a pen. Useful for labeling parts.

Universal Cutting Tool (UCT) - For most cutting operations. Uses a variety of inserts. Does not oscillate, drags blade through material.

V-Cut Tool (VCT) - For cutting angles in soft material. As this tool drags the knife through the material, it is not suitable for very thin material as it lifts the material as it cuts, nor for very thick material, as the material begins to crush rather than cut. 1/8" - 3/18" foam core is a reasonable material range for this tool.
Electric Oscillating Tool (EOT) - For soft materials such as cardboard or foamcore. Good when UCT excessively drags or deforms the material.

Pneumatic Oscillating Tool (POT) - like EOT but with greater blade throw. Good with thicker materials that the EOT has trouble cutting cleanly. The POT cuts a little cleaner than the EOT, but because it is pneumatic and runs off the same compressor as the Onsrud and woodshop air hookups, it cannot be used while the others are running. Only use the POT if the Onsrud is not currently operating.

Driven Rotary Tool (DRT) - Uses a rotating circular blade. For fabrics and fabric like materials. Minimizes force acting on the material, but has the greatest overcut due to the blade geometry.

Router Module (RMA) - For routing or engraving materials that cannot be cut with a knife. Uses router bits whose diameter also limits depth of cut, potentially. Small parts may require bridges to maintain connection to surrounding material while being cut.
CTT
PTT

Tools & Blades for Zund digital cutting systems

Zund offers quite a few different tools, each of which is optimally suited for a particular material: creasing tools, electric and pneumatic oscillating tools, perforating tools, driven rotary tool, universal cutting tools, routers (300W tool and 1kW router module), drawing tools and several others. Below are some of the common cutting tools, brief descriptions of them, and what blades are used with them for cutting.

Zund Cutting Tool	Overview	Compatibility	Mountable blades
Universal Cutting Tool	The Universal cutting tool UCT is used together with flat-stock drag knives and oscillating pointed blades to cut through a wide range of materials less than 5mm thick such as paper, vinyl, hard foam, cardboard, PVC banners, tarpaulin, coated textiles, PC, PP, plastic, film and other soft and thin materials. This tool is the most popular and used among plotters.	Compatible with G3, S3, D3, L3	Blades to use with UCT: Z10, Z11, Z16, Z17, Z44, Z46, Z101, Z103 Z83
Kiss Cut Tool	The Kiss Cut Tool KCT is used in conjunction with a round-stock drag knife to hole or etch soft and thin materials up to 3mm thick such as self-adhesive vinyls, paper, plastic, masking film, fabric, fleece or harder substrates where light etching or film removal is required. A distinctive feature of the tool is that it is spring loaded.	Compatible with G3, S3, D3	Blades to use with KCT: Z1, Z2, Z3, Z4, Z5, Z6, Z7
Electric Oscillating Tool	The Electric Oscillating Tool EOT is a tool used with flat and pointed oscillating blades for cutting through soft to medium density materials up to a thickness of 3 mm that require sawing, such as, cardboard, twin-wall sheets, honeycomb cardboard, leather, rubber, foam boards.	Compatible with G3, S3, D3, L3	Blades to use with EOT: Z17, Z21, Z22, Z23, Z26, Z28, Z29, Z41, Z43, Z62, Z63, Z104, Z204, Z205
Driven Rotary Tool	The Driven Rotary Tool DRT is a rotary tool used with a drag rotary knife for cutting through soft materials such as fabrics and film, paper, thin felt, etc.	Compatible with G3, S3, D3, L3	Blades to use with DRT: Z50, Z51, Z52
Pneumatic Oscillating Tool	The Pneumatic Oscillating Tool POT is a tool used with a long oscillating drag blade for cutting through medium to high density materials with thicknesses over 12 mm, such as honeycomb boards, rubber, felt and polycarbonates.	Compatible with G3, S3, L3, D3	Blades to use with POT: Z16, Z17, Z21, Z22, Z23, Z26, Z28, Z29, Z41, Z43, Z61, Z62, Z63, Z104, Z204, Z205
Press Cutting Tool	Press Cutting Tool PCT is a tool used with a flat-stock drag knives for economical cutting of corrugated cardboard up to a thickness of 7 mm	Compatible with G3, S3, D3	Blades to use with PCT: Z16, Z17, Z104
V-Cutting Tool	The V-Cutting Tool VCT is a tool used with a drag knife to cut through materials up to 16 – 25 mm thickness at different angles ( 0°, 5°, 10°, 15 °, 22.5°, 30°, 45°, 60°). Soft and medium density materials such as corrugated cardboard, honeycomb, twin-wall sheets, foam core materials, acoustic panels, polyester fiber boards can be cut with VCT	Compatible with G3, D3	Blades to use with VCT: Z70, Z71, Z701, Z73

ZUND Blades Types(drag blades, oscillating blades, rotary blades)

ZUND Blades Types

In general, there are the following types of blades for Zund Cutters: drag blades, oscillating blades, rotary blades.

Drag blades
Drag knives are used in non-powered tools such as UCT, KCT, VCT, SCT, C2, insertion sleeve 40. Suitable for cutting foil, paper, thin folding cartons, banners, etc.
Round-stock blades (C2, C2P, KCT, KCM-S): Z1, Z2, Z3, Z4, Z5, Z7
Flat-stock blades (UCT, SCT, insert sleeve 40): Z6, Z10, Z11, Z44, Z46, Z101, Z102, Z103, Z83
V-cut blades: Z70, Z71, Z701, Z73
Mat-cutting blades (PPT): Z30, Z33, Z34, Z35

Oscillating blades
Oscillating blades used in EOT/POT oscillating tools for cutting thick and tough materials.
Oscillating blade – pointed: Z16, Z17, Z20, Z21, Z22, Z60, Z66, Z601, Z606, Z608
Oscillating blade – flat: Z26, Z41, Z42, Z61, Z62, Z63, Z64, Z68, Z69, Z82, Z201, Z202, Z203, Z204, Z603, Z605, Z607
Rotary blade
Rotary blades - decagonal blades - are used in DRT/PRT tools for cutting breathable materials such as textile, carbon fiber, glass fiber, etc.

Rotary blades: Z50, Z51, Z52, Z53

What is Cemented Carbide?

The hardness is next to diamond and same weight as gold.

Cemented Carbide is an extremely hard metal.
It is harder than iron or stainless steel, and is second only to diamond.
It is twice as heavy as iron, and about the same weight as gold.
Not only is it hard, but it also has superior strength and elasticity, minimal strength loss in high temperatures, is highly wear resistant, and is used in metal tools and molds.

Tungsten carbide + cobalt

Cemented Carbide is just that: an alloy.
It is not a natural metal, but rather a man-made metal.
It is made up of tungsten carbide (WC) and cobalt (Co).
Tungsten carbide has a high melting point (2900℃), and will not melt like iron.
Because of this, we manufacture the alloy from powder by baking it at around 1300℃ to 1500℃ and allowing it to harden.
The material used to bind the powder is cobalt.

Used by many companies in a variety of ways

Characteristics of cemented carbide (typical example of WC-Co-based metal) 1)

Composition(mass%)		Density （Mg/m3）	Hardness HRA	Transverse rupture strength (GPa)	Young’s modulus (GPa)	Thermal conductivity （W/m・K）
WC	Co	Density （Mg/m3）	Hardness HRA	Transverse rupture strength (GPa)	Young’s modulus (GPa)	Thermal conductivity （W/m・K）
100	―	15.7	92-94	0.3-0.5	720	―
97	3	15.1-15.2	90-93	1.0-1.2	668	88
95	5	14.8-15.0	90-91	1.6-1.8	620	80
90	10	14.3-14.5	88-90	1.5-1.9	584	71
85	15	13.8-14.0	86-88	1.8-2.2	548	―
80	20	13.1-13.3	83-86	2.0-2.6	500	―
75	25	12.8-13.0	82-84	1.8-2.7	467	―
70	30	12.3-12.5	80-82	―	―	―
―	100	8.9	―	ー	179	71

1)The Japan Cemented Carbide Tool Manufacturer’s Association: Handbook on cemented carbide tools, 1988

Introduction Of The Performance Of Tungsten Steel Blades

Introduction Of The Performance Of Tungsten Steel Blades

As a Tungsten Carbide Knife Manufacturer, we have summarized the performance of tungsten steel blades in the following aspects.

(1) High hardness. The hardness of tungsten steel can reach 8.9--9.1 Mohs hardness, the tungsten steel blade is 10 times that of 18K gold, and the iron gold is 4 times, which is equivalent to natural sapphire. The high hardness makes the tungsten steel very wear-resistant, and it is not easy to cause scratches, deformation and the like.

(2) High brightness. After the tungsten carbide blade is highly polished, the tungsten steel blade is fully embossed with jewel-like color and brilliance, and the brightness is like a mirror.

(3) Tungsten steel has good corrosion resistance. Through artificial sweat test, the cutting machine blade does not corrode completely. It does not fade. It does not change color, is not allergic. It does not rust, the gloss can be kept for a long time, and the use of tungsten steel blades is impossible for other metals.