• Brazing: The carbide tip is brazed onto the steel body using a high-temperature brazing process. This creates a strong and durable bond between the two components.
• Drilling Coolant Hole: A small hole is drilled through the center of the drill body to create the internal coolant channel.
• Grinding and Finishing: The assembled drill is ground to achieve the final dimensions and surface finish. This includes grinding the outside diameter, ensuring concentricity between the tip and body, and sharpening the cutting edge.
• Polishing: The drill is polished to a smooth finish to reduce friction and improve chip evacuation.
• Inspection and Quality Control: Rigorous quality control measures are implemented throughout the manufacturing process to ensure that the gun drill meets stringent standards for dimensional accuracy, concentricity, and surface finish.

Length:

• Short Lengths: For shallow hole drilling, Baucor likely offers gun drills with lengths suitable for applications like mold cooling channels and firearm barrels.
• Long Lengths: Gun drills can reach impressive lengths for deep hole drilling applications in industries like aerospace and automotive. Baucor may offer drills with lengths exceeding several meters.

Additional Considerations:

• Custom Sizes: Baucor may also offer custom-made gun drills with specific diameters and lengths to meet unique customer requirements.
• Material and Coating Options: Depending on the application, Baucor likely provides gun drills with different material options (e.g., solid carbide, carbide-tipped) and coatings (e.g., TiN, TiCN) to optimize performance and tool life.

Finding the Exact Sizes:

To obtain precise information about the sizes of gun drills manufactured by Baucor, it is recommended to:

1. Visit the Baucor Website: Their official website should have a product catalog or section dedicated to gun drills, listing the available sizes and specifications.
2. Contact Baucor Directly: Reaching out to their customer service team can provide you with detailed information about their product offerings and help you choose the right gun drill size for your specific application.
3. Consult with Distributors: Baucor's authorized distributors can also provide information on the available sizes and help you place an order.

By utilizing these resources, you can ensure that you select the perfect Baucor gun drill size for your deep hole drilling needs.

Gun drills are constructed using a combination of materials chosen for their specific properties to ensure optimal performance in deep hole drilling:

Cutting Tip:

1. Solid Carbide (WC): This is the most common and preferred material for gun drill tips due to its extreme hardness, wear resistance, and ability to maintain a sharp cutting edge even at high temperatures generated during deep hole drilling.
2. Carbide-Tipped (TCT): Some gun drills feature a carbide tip brazed onto a steel body. This combines the hardness and wear resistance of carbide with the toughness and flexibility of steel, making them suitable for certain applications.

Drill Body (Shank):

1. Alloy Steel: High-quality alloy steel is typically used for the drill body (shank) due to its strength, durability, and resistance to bending or deformation under the stresses of deep hole drilling.
2. Stainless Steel: In some cases, stainless steel may be used for the drill body to provide enhanced corrosion resistance, particularly in environments where the drill may be exposed to harsh chemicals or fluids.

Internal Coolant Tube:

1. Stainless Steel: Stainless steel is often used for the internal coolant tube due to its corrosion resistance and ability to withstand the high-pressure coolant flow.

Optional Coatings:

1. Titanium Nitride (TiN): This gold-colored coating can be applied to the cutting tip to further enhance hardness, reduce friction, and improve wear resistance.
2. Titanium Carbonitride (TiCN): This black coating offers even greater hardness and wear resistance than TiN, making it suitable for drilling harder materials or applications with high cutting speeds.
3. Other Coatings: Other coatings, such as aluminum titanium nitride (AlTiN) or diamond-like carbon (DLC), may also be used in specific applications to further improve the performance and longevity of the gun drill.

By selecting the appropriate materials and coatings for each component, manufacturers can create gun drills that are optimized for specific deep hole drilling applications, ensuring precision, accuracy, and long tool life.

Gun drill coatings significantly enhance performance, tool life, and overall drilling efficiency. Here are the common and specialized coatings used to improve gun drills:

Common Coatings:

1. Titanium Nitride (TiN): This gold-colored coating is widely used for its hardness, reduced friction, and improved heat resistance. TiN-coated gun drills offer increased tool life and better performance in a variety of materials.
2. Titanium Carbonitride (TiCN): This hard, black coating provides superior wear resistance and lower friction compared to TiN. TiCN-coated gun drills are well-suited for machining abrasive materials and for high-speed drilling applications.
3. Titanium Aluminum Nitride (TiAlN): This violet-colored coating exhibits excellent heat resistance and hardness, making it ideal for high-speed and high-temperature drilling applications. TiAlN-coated gun drills excel in machining hardened steels and other challenging materials.
4. Aluminum Titanium Nitride (AlTiN): This hard, light grey coating boasts high oxidation temperature and wear resistance. AlTiN-coated gun drills are suitable for high-speed machining of difficult-to-cut materials like stainless steel and nickel-based alloys.

Specialized Coatings:

1. Diamond-Like Carbon (DLC): This thin, hard coating provides exceptional wear resistance, low friction, and chemical inertness. DLC-coated gun drills are suitable for machining non-ferrous metals, plastics, and composites.
2. Chromium Nitride (CrN): This coating offers good wear and corrosion resistance, making it suitable for drilling in corrosive environments or materials that tend to stick to the drill.
3. Multi-layered Coatings: Some manufacturers offer multi-layered coatings that combine the benefits of different materials for enhanced performance and durability.

Choosing the Right Coating:

The ideal coating for a gun drill depends on several factors, including:

• Material Being Drilled: The hardness and abrasiveness of the material being drilled will influence the type of coating needed. Harder materials generally require more wear-resistant coatings.
• Drilling Conditions: High-speed or high-temperature drilling may necessitate coatings with superior heat resistance.
• Desired Tool Life: Coatings can significantly extend the lifespan of gun drills, so choosing the right coating can help reduce tool replacement costs.

Consulting with the gun drill manufacturer or a knowledgeable supplier can help you select the optimal coating for your specific needs. By considering the material, drilling conditions, and desired tool life, you can ensure that your gun drills deliver the best possible performance and longevity.

Gun drills are specialized tools used for creating deep, precise holes in a variety of materials. Their unique design and capabilities make them essential in several industries and applications:

Industries:

• Aerospace: Gun drills are crucial in the aerospace industry for drilling deep holes in engine components, such as turbine shafts and casings, as well as in landing gear and other structural parts. The precision and straightness of these holes are vital for the safety and performance of aircraft.
• Automotive: In the automotive industry, gun drills are used to create oil galleries and coolant passages in engine blocks, cylinder heads, crankshafts, and transmission components. These holes are essential for proper lubrication and cooling of the engine and transmission systems.
• Medical Devices: The medical device industry relies on gun drills to produce precise holes in surgical instruments, implants, and other medical components. The accuracy and surface finish of these holes are critical for ensuring the functionality and safety of medical devices.
• Mold Making: Gun drills are used extensively in the mold-making industry to create cooling channels in plastic injection molds. These channels help regulate the temperature of the mold during the injection molding process, ensuring consistent and high-quality plastic parts.
• Energy: Gun drills find applications in the oil and gas industry for drilling deep holes in oil well components, such as drill pipes and drilling rigs. These holes are used for fluid passage and other critical functions in the extraction process.

Specific Applications:

• Deep Hole Drilling: Gun drills are specifically designed for drilling holes with high depth-to-diameter ratios. This makes them ideal for applications where deep holes are required, such as oil galleries in engine blocks and coolant channels in molds.
• Rifling: Gun drills are used to create the spiral grooves (rifling) inside gun barrels, which impart spin to the projectile for accuracy and stability.
• Woodwind Instrument Manufacturing: Gun drills are used to bore long, straight holes in wooden instruments like clarinets, flutes, and oboes.

Gun drills are essential tools in industries that demand high precision, accuracy, and efficiency in deep hole drilling. Their ability to create deep, straight holes with excellent surface finish makes them indispensable in various manufacturing and engineering applications.

Gun drills are essential tools in industries requiring deep, precise holes with smooth finishes. Here are the main industries that utilize gun drills:

• Aerospace: The aerospace industry relies on gun drills for creating deep holes in critical components like turbine shafts, landing gear parts, and hydraulic manifolds. The precision and straightness of these holes are crucial for flight safety and performance.
• Automotive: In automotive manufacturing, gun drills are used for creating oil galleries and coolant passages in engine blocks, cylinder heads, crankshafts, and transmission components. These passages ensure proper lubrication and cooling for optimal engine performance.
• Medical Devices: The medical device industry utilizes gun drills for manufacturing surgical instruments, implants, and other components where precision and cleanliness are paramount. Gun drilling ensures accurate and burr-free holes in these critical medical devices.
• Mold Making: Gun drilling is essential for creating cooling channels in injection molds used for producing plastic parts. These channels maintain consistent mold temperatures, ensuring high-quality and dimensionally accurate plastic products.
• Oil and Gas: In the oil and gas industry, gun drills are employed to create deep holes in drilling equipment, pipes, and other components. These holes are often used for fluid passage and other critical functions during drilling operations.
• Defense: Gun drilling is used in the defense industry for manufacturing firearms, artillery barrels, and other military components requiring deep, precise holes. The straightness and surface finish of these holes are crucial for accuracy and performance.
• Energy: The energy sector utilizes gun drills for various applications, such as drilling deep holes in turbine components for power generation and in components for renewable energy systems.
• Hydraulics and Pneumatics: Gun drills are used to create precise holes in hydraulic and pneumatic cylinders, valves, and other components where leak-free performance is essential.
• General Manufacturing: Gun drilling is employed in various manufacturing industries for creating deep holes in components for machinery, tools, and other equipment.

The versatility and precision of gun drills make them invaluable in these industries, where the quality and accuracy of deep holes are critical for product performance, safety, and longevity.

Gun drills are specifically designed to work with specialized machines optimized for deep hole drilling:

• Gun Drilling Machines: These machines are purpose-built for using gun drills. They have high-pressure coolant systems, precise spindle rotation, and sturdy construction to handle the unique demands of deep hole drilling. Gun drilling machines come in various configurations, including horizontal, vertical, and multi-spindle designs, catering to different workpiece sizes and production volumes.
• Deep Hole Drilling Machines: While not exclusively for gun drills, these machines are capable of accommodating gun drilling operations. They often have similar features to gun drilling machines, such as high-pressure coolant delivery and precise spindle control. Deep hole drilling machines may also be used for other deep hole drilling techniques like BTA drilling and Ejector drilling.
• CNC Machines (Computer Numerical Control): Gun drills can be integrated into CNC machining centers and lathes for automated and highly precise deep hole drilling operations. CNC control allows for complex tool paths and precise positioning, enabling the production of intricate parts with deep holes.
• Custom-Built Machines: In some specialized applications, custom-built machines are designed to incorporate gun drilling capabilities. These machines are tailored to specific workpiece geometries and production requirements, ensuring optimal performance and efficiency in deep hole drilling operations.

Choosing the right machine for gun drilling depends on various factors:

• Hole Diameter and Depth: The required hole dimensions will dictate the machine size and capabilities. Larger machines are needed for drilling deeper and wider holes.
• Material: The workpiece material influences the machine's power and rigidity requirements. Harder materials may require more robust machines with higher spindle torque.
• Production Volume: For high-volume production, multi-spindle gun drilling machines or CNC machines may be preferred for their speed and efficiency.
• Precision and Tolerance: Applications requiring tight tolerances and high precision may necessitate CNC machines or specialized gun drilling machines designed for accuracy.

If you are considering gun drilling for your application, it is recommended to consult with machine tool manufacturers or experts to determine the most suitable machine for your specific needs. They can provide guidance on machine selection, tooling, and process optimization to achieve the desired results in your deep hole drilling operations.

As a leading manufacturer of gun drills, Baucor would likely offer a comprehensive suite of design and engineering support services to ensure customers achieve optimal performance and efficiency in their deep hole drilling applications. These services could include:

Custom Gun Drill Design:

Our team of experienced engineers can work with customers to design custom gun drills tailored to specific requirements. This includes optimizing drill geometries, such as point angle, lip height, and margin width, to suit the specific material being drilled and the desired hole characteristics.

Material Selection and Coating Expertise:

Baucor can guide customers in selecting the most suitable material and coating for their gun drills, considering factors like the workpiece material, drilling conditions, and desired tool life. They can recommend materials like solid carbide, carbide-tipped steel, or other specialized materials, along with coatings like TiN, TiCN, or AlTiN to enhance performance and durability.

Deep Hole Drilling Process Optimization:

Baucor's engineers can analyze a customer's current drilling processes and suggest improvements to enhance efficiency, reduce tool wear, and improve overall productivity. This may involve optimizing cutting parameters like spindle speed, feed rate, and coolant pressure, as well as recommending alternative tooling or strategies.

Troubleshooting and Technical Support:

Baucor can provide comprehensive technical support to address any issues customers encounter with their gun drills. This could include on-site troubleshooting, remote assistance, and access to a knowledge base of technical resources and troubleshooting guides.

Training and Education:

Baucor may offer training programs or workshops to educate customers on the proper use and maintenance of gun drills. This can help operators maximize tool life, improve drilling efficiency, and achieve better results.

Application-Specific Solutions:

Baucor may have expertise in specific industries or applications that require deep hole drilling, such as aerospace, automotive, or medical devices. They can leverage this knowledge to offer tailored solutions that meet the unique challenges of these industries.

Research and Development:

Baucor likely invests in research and development to continuously improve their gun drill technology and develop innovative solutions for deep hole drilling challenges. They may collaborate with customers on research projects or offer beta testing opportunities for new products.

By offering a comprehensive suite of design and engineering support services, Baucor can help customers maximize the value and performance of their gun drills, ultimately leading to improved productivity, reduced costs, and enhanced product quality.

Gun drill design is crucial for achieving optimal performance, precision, and efficiency in deep hole drilling applications. Here are the key design guides that manufacturers adhere to:

1. Single Flute Design: Gun drills have a single straight flute for efficient chip evacuation and coolant delivery. This design minimizes friction and heat generation during drilling.
2. Internal Coolant Hole: A central coolant hole runs through the entire length of the drill. This allows high-pressure coolant to be delivered directly to the cutting zone, ensuring efficient cooling and chip removal.
3. Cutting Tip Geometry: The cutting tip geometry is critical for achieving precise holes and minimizing tool wear. It includes the following elements:

Point Angle: The angle at the tip of the drill, typically around 130 degrees, affects chip formation and cutting forces.

Margin Width: The width of the flat surface behind the cutting edge, which influences chip flow and cutting stability.

Lip Height: The height difference between the two cutting edges, which affects chip thickness and cutting forces.

• Guide Pads: Located behind the cutting edge, guide pads help to stabilize the drill and maintain straightness during deep hole drilling. The number, size, and shape of guide pads can vary depending on the drill diameter and application.
• Material Selection: Gun drills are typically made from solid carbide or feature a carbide tip brazed onto a steel body. The choice of material depends on the workpiece material, desired hole quality, and cost considerations.
• Coating: Coatings like Titanium Nitride (TiN) or Titanium Carbonitride (TiCN) can be applied to enhance the drill's hardness, wear resistance, and cutting performance.
• Overall Length and Diameter: Gun drills come in various lengths and diameters to suit different hole depths and sizes. The length-to-diameter ratio is a critical factor in determining the drill's stability and performance.
• Coolant Hole Design: The size and shape of the coolant hole affect the coolant flow rate and pressure, which are crucial for efficient chip removal and cooling.
• Shank Design: The shank design, typically a straight shank with a Weldon flat, ensures secure clamping in the drilling machine's chuck.

By adhering to these design guides, manufacturers can produce high-quality gun drills that deliver precise, straight, and deep holes with excellent surface finishes. This ensures optimal performance and longevity in demanding deep hole drilling applications across various industries.