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Solid Carbide Taps

What is Solid Carbide Taps

Solid carbide taps are cutting tools used to create threads in holes. They are made from a single piece of carbide material and designed to withstand high temperatures and pressure during the tapping process. Solid carbide taps are commonly used in CNC machining and offer excellent wear resistance and longer tool life compared to traditional high-speed steel taps. They are available in various sizes and thread types to suit different materials and applications.

Advantages of Solid Carbide Taps

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High wear resistance: Solid carbide taps are made from a hard and tough material that can withstand high wear and tear. They are ideal for machining tough and abrasive materials like steel, stainless steel, and cast iron.

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Longer tool life: Due to their high wear resistance, high speed steel taps have a longer tool life than other types of taps. This means they can be used for longer periods of time without the need for frequent tool changes.

03/

Improved thread quality: Solid carbide taps are designed to produce high-quality threads with minimal burrs and chips. This results in smoother and more precise threads, which are essential for various applications.

04/

Greater accuracy: Because solid carbide taps are highly precise, they can produce threads with tighter tolerances. This is especially important for applications where precision is critical, such as in aerospace or medical equipment.

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Faster cutting speeds: Solid carbide taps can operate at faster cutting speeds than other types of taps. This results in faster machining times and greater productivity for manufacturers.

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Versatility: Solid carbide taps can be used for a wide range of materials and applications, making them a versatile option for manufacturers. This versatility makes them suitable for a variety of industries, including aerospace, automotive, and machining.

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The Different Types of Carbide Taps and When to Use Them

Carbide taps have a lot of advantages, especially when you're cutting very abrasive materials. The absolute best choice for tapping glass-filled polycarbonates, space age alloys, nonferrous materials, cast iron, and a range of other exotic materials, their anti-friction qualities lead to a longer tool life.Because of this, you'll require fewer replacements, less downtime, and increased productivity.

The durability, flexibility, and longevity of high speed steel taps is unparalleled, allowing you - and your employees - to focus on what's important: getting the job done.In today's post, we're going to take a closer look at a few of the options that they offer.

Standard Screw Thread Insert Taps
S.T.I. (Screw Thread Insert) Taps are special taps for helical coil wire screw thread inserts, which provide positive means for protecting and strengthening tapped threads in any material.

Typically used on softer abrasive materials, these taps create more accurate thread forms than other standard taps. When you need to be precise, these spiral flute tap for stainless steel are the best choice.

STI taps are correctly sized to produce an internal thread that accommodates a helical coil wire screw thread insert. The insert, in turn, will accept a screw thread of the nominal size and pitch at final assembly. Screw thread inserts provide stronger tapped threads (stronger assemblies) due to a more balanced distribution of loads throughout the length of thread engagement.

Thread Forming Tap
Roll Taps (aka, Thread forming taps, Form taps0 offer improved thread quality and strength due to the fluteless design, and therefore allows for greater fastener strength in the threaded product. This tap does not cut, so it is "chipless," and therefore will not cause a chip problem. This is why thread forming, over thread cutting, eliminates costly and time-consuming chip clean-up and disposal.

Thread forming taps are fluteless and include lubrication grooves. Not intended for general applications, they work by displacing the metal without removing it. Because of this, they are ideal for chip removal in blind holes.

Roll Thread Forming Taps Features

Improved thread quality and strength due to fluteless design of carbon steel taps; allows greater fastener strength in threaded product.
Tapping speeds can be increased as much as double that of conventional cutting taps…more tapped holes per hour.
Thread forming (over thread cutting) eliminates costly and time-consuming chip clean-up and disposal.
Improved high speed tap life, even in abrasive materials…no cutting edges to get dull.
Lubrication grooves allow forced passage of air and lubricant when tapping.
Simplifies tapping of problematic blind bottoming holes where adequate chip clearance is impossible with chip-producing cutting taps.

Carbide Insert Tap Features

High speed steel body absorbs excessive shock and offers the rigidity necessary to minimize carbide breakage or chipping.
Ideal for high production runs, offering the capability to achieve higher speeds and feeds, with fewer tool changes.
High performance tapping allows greater efficiencies in part throughput.
Can also be used in conjunction with surface treatments for enhanced performance.

Carbide Insert Taps

A cost-efficient solution, only the cutting portion of insert taps is made from carbide. Their HSS body is able to absorb vibration and account for their lack of rigidity.
If you're considering testing the waters with high speed tap, insert taps are a great option. It's a very economical way to utilize the benefits of carbide with solid carbide cutting face inserts meticulously brazed to a H.S.S. tap body.

The Why of Carbide Taps

While high speed steel (HSS) taps have a practical top limit of around 35-40 HRC before tool life becomes severely limited, carbide is often used in materials with hardness up to 65 HRC (the ones that chew up HSS in no time). With the appropriate style for the application, tool life of carbide can be 520 times that of HSS, with the added bonus of superior accuracy.

Our carbon steel taps are American made from high-quality C2 micro-grain carbide by highly skilled machinists on state-of-the-art equipment, and are backed by decades of experience from our support staff.

Machining with carbide does come with some "do's and don't". Hand tapping is generally not recommended. Rigid tapping and spot-on alignment are critical to avoid breakage. Not to worry, however. Modern CNC equipment is ideally suited for carbide applications.

Here's some additional tips. Coolant holes through the spiral flute tap for stainless steel are an option for flushing chips out of the holes on the most difficult materials like some of the tougher stainless steels and space-age alloys. Carbide STI (Screw Thread Insert) tapping of these materials has become commonplace in the aeronautical and aerospace industries.

Although initially more expensive than HSS taps, significant savings can be realized, especially in long-run jobs. Higher cutting speeds, greater tool life, and reduced downtime from fewer tooling changes translate into reduced machining costs.

Solid carbide cutting surfaces are bonded onto a high-speed steel body to provide the best of both worlds; durability of carbide with the "forgiveness" of a steel body and shank.

Forming Taps vs. Cutting Taps - Which One Should You Choose?

Today we will discuss the differences between forming taps and cutting taps, and which one you should choose for your application. Taps are an essential tool used in the manufacturing process to create threads in a workpiece. Understanding the differences between forming taps and cutting taps can help you make the right choice and achieve optimal results.

Forming Taps: Forming taps work by displacing the material in the workpiece to form the internal thread. The tap does not remove material, but instead, it cold-forms the thread by pressing the material into the desired shape. This process results in a stronger and smoother thread. Forming taps work in a variety of non-ferrous and ferrous materials with a hardness generally under 35 Rockwell-C. By design, form taps are more rigid than cut taps, hence they can be run faster and typically yield longer tool life.

Cutting Taps: These taps work by removing the material to create the internal thread. The tap has cutting edges that remove the material in a helical pattern to create the thread. This process can be used in a variety of materials including plastic, aluminum, and steel. Cutting taps are less rigid than forming taps as they employ flutes, which by design makes the tool less rigid.

Thread Geometry: The thread geometry also differs between forming and cutting taps. Forming taps produce threads with a full-form geometry, resulting in a stronger and smoother thread. Cutting taps, on the other hand, produce threads with a truncated form geometry that sheers the material.

Hole Size: Due to greater torque and formed lobes or "rabbit ears” in the forming process, cold forming taps require large pre-drilled hole sizes versus cutting taps. The minor diameter of the hole is easier to control with cut taps, as it remains unchanged after subsequent cut tap operations.

Conclusion: As you now know, the choice between forming taps and cutting taps depends on the material being worked and the productivity goals desired. Forming taps are ideal in high production environments for their speed capability and in miniature applications where a more rigid tap is advantageous. Cutting taps are best used in harder materials and/or larger threads, where torque and hardness limitations come into play for forming taps. Other elements such as minor diameter, tapping depth, and internal thread condition should also be considered.

How do I Maintain my Solid Carbide Taps?

To maintain your solid carbide taps, you should clean them after each use and store them in a dry, protected place. You should also inspect them regularly for signs of wear or damage and replace them as necessary. Finally, you should use them only with the appropriate cutting fluid and at the recommended speed and feed rates.

Main Features of Solid Carbide Taps

As cemented carbide tools gradually replace high-speed steel tools in turning, cemented carbide taps are more and more used in threaded hole processing. Compared with high-speed steel, cemented carbide has high hardness and brittleness. Tapping with cemented carbide taps has the problem of chip treatment. However, cemented carbide tap for processing cast iron and aluminum alloy materials, its use effect is very good, the main form of tap damage is mechanical wear.

As the automobile industry processes a large number of cast iron and aluminum alloy parts, cemented carbide taps are used to obtain long tool life. When machining workpieces of these materials, the service life of cemented carbide taps is longer than that of high speed steel taps.

In the automotive industry, the reduction of tool change time is an important factor, and the long life of cemented carbide wire will minimize the tool change time. The effect is very good when the surface coated carbide tap with small helix angle is used to tap the aluminum alloy workpiece with silicon content of 8% - 12%.

The taps made of submicron grain cemented carbide can increase the toughness of the cutting tool without reducing its hardness, which is very effective in cutting hardened steel, plastics and difficult to machine nickel base alloy.

Characteristic
Solid Carbide Taps are usually divided into single or group taps. Small and medium sized through hole threads can be tapped with a single tap at one time. When processing blind holes or large-size screw holes, group taps are commonly used, that is, more than two taps are used to complete the processing of one screw hole in turn. There are two kinds of design of group taps: equal diameter and unequal diameter. For taps of equal diameter design, only the length of each tap is different; For the taps with unequal diameter design, the sizes of each thread are different, and only the last one has complete tooth profile.

Tap classification
According to different driving: hand tap and machine tap
According to the processing method: cutting tap and extrusion tap
According to the processed thread: metric coarse tap, metric fine tap, pipe thread tap, etc
According to its shape, it can be divided into straight groove tap, spiral groove tap and spiral point tap
According to the tapping direction of tap, it can be divided into parallel tap and reverse tap.

Solid Carbide Taps of type

Straight groove tap

The straight groove tap has the best versatility and the strongest rigidity. Therefore, generally in the processing of materials with higher hardness (such as: quenched steel above 40HRC) and chips with powder particles (such as cast iron and cast aluminum), straight groove taps are preferred.

Spiral groove tap

Spiral groove taps are more suitable for processing through-hole threads (also known as blind holes), and the chips are discharged upward during processing. Because of the helix angle, the actual cutting rake angle of the tap will increase with the increase of the helix angle.

Experience tells us

for materials with high hardness, the helix angle should be selected smaller, generally around 30 degrees, so as to ensure its own rigidity and prolong the life of tap. When processing non-ferrous metals, such as copper, aluminum, magnesium and zinc, which are not very hard, the helix angle should be larger, which can be about 45 degrees. The cutting is sharper, which is conducive to chip removal.

Edge angle tap

When machining thread, the chip is discharged forward, and the edge angle tap is preferred for through-hole thread. Because its design is based on the straight groove tap, and then use the grinding wheel to cut a cut obliquely at the edge, so its own rigidity can be comparable to the straight groove tap.

Extrusion tap

Different from the first three types of cutting taps, the extrusion taps are processed through the plastic deformation of the material itself, and the internal thread shape is extruded in the bottom hole by extrusion. Therefore, the processing material should not be too hard. The advantage of this method is that it does not produce chips, so 90% of the machining problems can be eliminated. However, due to extrusion molding, there is a small groove on the top of the processed internal thread, so it is not suitable for the work with higher sealing requirements.

How to Choose The Standard of Tap Thread?

There are three common systems of common thread: metric system, English system and unified system (also known as American system). Metric system is a thread with 60-degree tooth angle in mm. For example: m8x1-6h represents the tolerance zone of 8 mm diameter metric fine thread, 1 mm pitch and 6h internal thread.

Inch system is a thread with 55-degree tooth angle in inches. For example: BSW 1 / 4-20 means 1 / 4-inch diameter, coarse pitch 20 teeth per inch, this thread is rarely used. Another unified system is in inches, tooth angle of 60 degrees of thread.

The diameter is less than 1 / 4 inch, which is usually indicated by numbers. From No. 0 to No. 12, the diameter specifications are 0.06 inch to 1 / 4 inch respectively. The United States still mainly uses unified thread.

Our Factory

Zhuzuan (Chongqing) CNC Tool Co., Ltd. is a professional enterprise engaged in the research and development, production, and sales of CNC cutting tools. We cooperate with ZCC.CT and establish a long- term cooperation friendship. Our company was established in 2017 and is located in Shuangfu Industrial Park, Jiangjin District, Chongqing city. The environment is elegant and the transportation is convenient. Our company has advanced production equipment and an experienced technical team, committed to providing customers with high-quality CNC tool products and high-quality after-sales service.

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FAQ

Q: What is a solid carbide tap?

A: A solid carbide tap is a tool used for cutting threads in a variety of materials. It is made entirely of carbide material and is known for its high precision and durability.

Q: What are the advantages of solid carbide taps over other types of taps?

A: Solid carbide taps offer several advantages over other types of taps, including increased tool life, better wear resistance, higher precision and accuracy, and increased productivity.

Q: What materials can be tapped with a solid carbide tap?

A: Solid carbide taps can be used to tap a wide range of materials, including stainless steel, aluminum, titanium, brass, copper, and nickel alloys.

Q: How are solid carbide taps made?

A: Solid carbide taps are made using a process known as powder metallurgy. This involves mixing carbide powder with a binding agent and compressing it into the desired shape. The material is then sintered under high heat and pressure to form a solid, durable material.

Q: What are the different types of solid carbide taps?

A: There are several different types of solid carbide taps available, including straight flute taps, spiral point taps, spiral flute taps, and combination taps.

Q: What factors should be considered when selecting a solid carbide tap?

A: When selecting a solid carbide tap, it is important to consider factors such as the material being tapped, the thread size and pitch, the tapping depth, and the machine being used.

Q: How should solid carbide taps be maintained and cared for?

A: Solid carbide taps should be kept clean and free of chips and debris. They should also be lubricated and cooled properly during use. After use, they should be stored in a dry, cool place to prevent rust and corrosion.

Q: Which is better HSS or carbide?

A: Carbide is much harder, so it has a longer tool life and faster cutting data than conventional HSS. The downside of that hardness is brittleness, so the cutting edge on carbide tools can quickly fracture or chip in certain situations.

Q: What is the hardness of a carbide tap?

A: When to Use Carbide Taps. While high speed steel (HSS) taps have a practical top limit of around 35-40 HRC before tool life becomes severely limited, carbide is often used in materials with hardness up to 65 HRC (the ones that chew up HSS in no time).

Q: What is a carbide tip used for?

A: Carbide tips are widely used in various industries for cutting, drilling, and machining applications. They offer excellent hardness, wear resistance, and heat resistance, making them ideal for cutting tough materials such as metal, wood, and composites.

Q: Why is carbide used as a cutting tool?

A: Carbide tipped tools retain their cutting edge hardness at high machining temperatures generated by high cutting speeds and feeds that reduce machining cycle time. Carbide tipped tools improve surface finish and hold size far longer for better quality.

Q: What are the disadvantages of carbide?

A: Cemented carbides have some drawbacks including lower toughness, lower resistance to mechanical and thermal shock, and higher cost to process and fabricate.

Q: How hard is solid carbide?

A: The Mohs' hardness of tungsten carbide is “9.” It boasts a level of hardness second to diamond.

Q: Which is the toughest carbide?

A: Cemented carbide is one of the hardest and most successful composite engineering materials ever produced. Its unique combination of strength, hardness, and toughness satisfies the most demanding applications.

Q: What are the advantages and disadvantages of carbide tip?

A: Carbide or carbide tipped cutting tools are more efficient compared to high speed because they retain their cutting edge hardness at high machining temperatures. While carbide wears longer than other materials, once it becomes dull it can be very difficult to sharpen solid carbide or brazed carbide edges.

Q: Will carbide tip cut concrete?

A: Carbide drill bits are a great choice, as they're long and thick and will cut through concrete easily. These specialized drill bits will help you tackle concrete with ease. They have several features that make them especially well-suited for working with this material.

Q: What is the negative side of using carbide tipped blades?

A: Carbide saw blades are optimal tools, but they are not cheap. Carbide is an extremely hard material, and it cuts through softer material with ease. But the downside to carbide is that it is very brittle and easy to damage.

Q: Can carbide cut through steel?

A: Cutting stainless steel is a common job in construction and vehicle building. Thanks to Bosch Carbide Technology, sheet metal can now be cut effectively with a jigsaw or a reciprocating saw blade. All you need is a blade with carbide teeth and, typically, a fine-tooth pitch.

Q: What do you cut carbide with?

A: Diamond. A standard cut off wheel will make a considerable dent in carbide, it takes a little while, but its cheap, and once you get it scored pretty good, it should break.

Q: Is carbide sharper than steel?

A: In a nutshell, carbide is a lot harder and as a result, more brittle. That final hone crumbles the edge, whereas HSS burrs rather than crumbles, ultimately leaving a sharper edge.

Q: Why is carbide so expensive?

A: Compared with other metals, carbide is very expensive because it contains cobalt, which is severely short and has very high demand in various fields such as batteries for smartphones, or other electrical appliances.

We're professional solid carbide taps manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale solid carbide taps made in China here and get quotation from our factory. Good service and low price are available.

Straight Flute Tap, Solid Carbide Taps, Solid Carbide Form Tap