How To Cut Titanium Sheet?

How to Cut Titanium Sheet? It is a challenge that can also be made very simple. The key is to have an in-depth understanding of the characteristics of titanium sheet itself, the advantages and disadvantages of different cutting methods, and what to look for during the cutting process. Once you have this knowledge, cutting titanium sheet becomes a breeze.

This blog will provide you with practical tips on how to cut titanium sheet, all content has been carefully selected to avoid long and useless theories, easy to understand and cut straight to the point. If you are looking for guidance on how to cut titanium plates, don’t miss this post!

Titanium Sheet Characteristics

With its low density, high strength, excellent corrosion resistance and good biocompatibility, titanium sheet is widely used in many fields such as chemical, aerospace and medical. Titanium sheet has excellent mechanical properties and high temperature resistance to meet the demands of use in harsh environments.

The thickness of titanium sheet ranges from 0.025mm to 200mm, the maximum width of cold rolled titanium sheet can be up to 2000mm, the maximum width of hot rolled titanium sheet can be up to 3000mm, and the length of titanium sheet can be up to 9000mm, which is able to meet the customization needs of different customers.

In terms of standards, our titanium sheets strictly follow the American Standard (ASTM) standards, mainly including ASTM B265, ASTM F136, ASTM F67 and AMS4928. Our titanium sheet materials cover several grades, including pure titanium (Gr1, Gr2, Gr3, Gr4) and titanium alloys (Gr5, Gr7, Gr9, Gr12, Gr23). Among them, titanium alloys have much higher tensile and yield strengths than pure titanium, making them suitable for higher strength, complex environment applications.

Titanium Sheet Cutting Method

Shear Cutting

Titanium plate shearing is a common mechanical cutting method that works by applying a shearing force to the titanium plate through a shearing machine. When the shear stress exceeds the shear strength of the titanium plate material, the titanium plate is sheared apart to obtain the desired size and shape.

Advantage

Shear cutting is fast, efficient, easy to operate and has low labor costs, making it ideal for large-scale mass production. It is able to handle larger sizes of titanium plates, providing a highly efficient cutting solution that is particularly suitable for applications requiring high volume, high speed production. Its equipment maintenance costs are relatively low, making it one of the most affordable cutting methods.

Disadvantage

The maximum shear thickness of the shearing machine is generally 15mm, mainly suitable for straight line cutting in the direction of length and width, unable to carry out precision, complex or fine shaped size cutting. Its cutting tolerance is usually between 0-3mm, suitable for applications that do not require high precision. The edges of the cut titanium sheet may have certain burrs, requiring subsequent deburring. In addition, due to the external force used in the shearing process, the thin titanium plate may be deformed to a certain extent, so after cutting it is usually necessary to carry out straightening treatment to ensure the flatness and dimensional accuracy of the product.

Water Jet Cutting

Waterjet cutting is a precision cutting process utilizing ultra-high pressure technology. The principle is to mix water with abrasive, pressurize it to a very high pressure through a high-pressure pump, and then eject a high-speed water stream through the nozzle bore. The high-speed water stream has extremely high energy and can produce strong impact and abrasive effect on the surface of titanium plate, thus realizing precise titanium plate cutting.

Advantage

Firstly ,during the cutting process, the waterjet does not generate excessive heat, so there is no heat-affected zone, thus effectively avoiding deformation of the titanium plate and ensuring that the material and structure of the cutting area are intact. In addition, the waterjet cutting process does not release harmful gases, in line with environmental standards, is a green, non-polluting cutting method.

Secondly, the programming process of waterjet cutting is fast and easy, which can realize efficient and precise cutting. Its cutting surface is smooth and the cutting seam is small, which greatly reduces the need for subsequent processing, thus improving production efficiency and finished product quality. Waterjet cutting is particularly suitable for titanium sheet thicknesses ＞3mm. With the help of high-powered waterjets and high-quality abrasives, the maximum cutting thickness can be up to 300mm, which meets the processing needs of large-size titanium plates. Cutting tolerance would be (0.5-2)mm based on different cutting speed and pressure. In addition to conventional square cutting, waterjet cutting is also highly flexible, capable of cutting round, oval and other shaped sizes with precision, providing more customized processing solutions.

Disadvantage

Although water cutting has many advantages, its cutting speed is slower compared to shearing, laser cutting, EDM cutting and other technologies. This is mainly due to the fact that during water cutting, the water jet needs to pass through several processes, such as impacting, grinding and flushing, in order to complete the cutting of titanium plates, resulting in a lower overall processing speed.

In addition, the wastewater generated by waterjet cutting needs to be treated and purified to meet environmental standards, which places an additional environmental burden on the operation. The maintenance and upkeep costs of waterjet cutting equipment are also relatively high, as the equipment requires regular inspection and maintenance to ensure efficient operation of the pumps, nozzles and water flow system.

Laser Cutting

Laser cutting is a highly efficient thermal cutting method in titanium plate processing. It irradiates the surface of the titanium plate with a high power density laser beam, which causes the plate to melt, vaporize or burn rapidly in a local area, thus realizing precise cutting.

Advantage

Laser cutting of titanium sheet is the preferred technology in titanium sheet processing due to its high speed, high efficiency and high degree of automation. With CNC programming, the laser cutting process can be automated without the need for human intervention, greatly reducing errors and additional labor costs while increasing the efficiency of the production cycle.

With cutting tolerances typically in the range of ±0.1mm, laser cutting offers excellent cutting accuracy, enabling the precise cutting of very complex shaped patterns and fine apertures. This makes laser cutting ideal for applications that require high precision and fine detail to meet the needs of a wide range of complex designs and structures.

In addition, laser cutting technology is not limited to cutting, but can also be marked and engraved according to customer requirements. Whether it’s for branding, numbering, serial numbers or personalized graphics, laser engraving and marking provides clear, long-lasting results, offering customers more customized processing options.

Disadvantage

The power of a laser cutting machine is directly related to the thickness of the cut. For example, a 500W laser cutting machine is suitable for cutting titanium plates with a thickness of up to 3mm, a 1000W laser cutting machine can cut titanium plates with a thickness of up to 5mm, and a 2000W laser cutting machine is suitable for cutting with a thickness of up to 8mm. However, the higher the power, the higher the investment cost of the equipment. The initial investment of the laser cutting equipment is relatively large, much higher than that of the shearing machine and water cutting equipment, which may increase the financial pressure of production.

In addition, laser cutting produces a certain amount of noise during operation, and the high temperatures of the laser beam pose a potential health and safety risk to operators, especially if they are not adequately protected. Splashes may also occur during the cutting process, especially at high power cuts, and the splashes may have an impact on the surrounding environment and the operator.

The cutting surface of the laser cut may be subject to oxidation, resulting in a cut surface that is not as smooth as desired. In addition, there may be joints in the cut gap that require subsequent processing and cleaning, such as removal of oxidized layers and deburring.

EDM Cutting

EDM cutting, known as Electrical Discharge Machining Cutting, is a precision electrical machining technique. During the EDM cutting process, an electric field is formed between the electrode and the titanium plate, and plasma is generated in the air gap between the electrode and the titanium plate by means of electric pulse discharge. The high temperature of the plasma causes the surface of the titanium plate to melt and vaporize rapidly, and the molten metal is eliminated through high pressure, and the titanium plate is finally cut open to form the desired shape and workpiece.

Advantage

EDM cutting offers higher precision compared to above cutting methods, enabling extremely fine cuts of ±0.01mm. The main consumption of this technology is the EDM wire, instead of traditional abrasives such as steel knives and whetstones, which effectively reduces tool replacement and maintenance costs. In addition, the ability of EDM cutting to easily machine complex shapes and detailed contours greatly broadens the range of machining applications.

Because the EDM cutting process uses an electrode discharge rather than direct contact cutting, the surface of the cut is often very smooth and requires no subsequent grinding. This makes EDM cutting not only more efficient, but also reduces the time and cost of subsequent machining.

Disadvantage

One of the main disadvantages of EDM cutting is its slow cutting speed. Since the cutting process requires gradual removal of material by constant discharge, the speed is usually controlled at 3-5 mm²/min, which is less efficient for high volume production.

In addition, the cost of equipment and consumables for EDM cutting is high. In addition to the investment in equipment for the EDM cutting machine, the electrode wire and coolant are also important cost components. The electrode wire is constantly consumed during the cutting process and needs to be replaced periodically, while the coolant is used to reduce the heat generated during the cutting process and to maintain the normal operation of the equipment, which also increases the production cost laser cutting.

Else Cutting

In addition to the cutting methods mentioned above, there are other techniques such as plasma cutting, sawing, turning, and milling CNC machine cutting. However, these methods are less commonly used for cutting titanium plates. They are more widely applied in the cutting of titanium bars and titanium tubes, where their advantages are more pronounced due to the different material properties and thicknesses involved.

For more detailed insights on cutting titanium bars, we will be releasing another blog titled: “How to Cut Titanium Bars?” Stay tuned for further information on this topic.

Titanium Sheet Cutting Tips

1.Pre-treatment before cutting

Before performing titanium plate cutting, it is important to clean the surface of the titanium plate to remove oil, rust spots and other impurities. A clean surface ensures that the cutting process goes smoothly and reduces any obstacles or undesirable effects during cutting

2. Choosing the right cutting method
The cutting method of titanium sheet should be chosen according to its size, required tolerance, budget and delivery time. For titanium plates of different thicknesses and shapes, adopting the appropriate cutting method not only improves efficiency, but also ensures that the quality of the cut is at an optimum level.

3. Control of cutting parameters
During the cutting process, the cutting speed and feed rate are properly controlled. The combination of low cutting speed and high feed rate can effectively reduce the thermal impact of the cutting process and avoid the deformation of the titanium plate, as well as reduce the wear of the tool and extend its service life.

4. Use appropriate cutting fluid
Select the appropriate cutting fluid according to the cutting method to help lubricate and cool. Cutting fluid not only reduces heat buildup, but also effectively removes metal shavings generated during the cutting process, protects the tool and enhances cutting results.

5. Regular maintenance and inspection of equipment
Regularly inspect and maintain your cutting equipment to ensure that it is in optimal working condition. Timely replacement of worn cutting tools to avoid equipment problems leading to reduced cutting efficiency or substandard cutting quality, thus ensuring the stability and quality of production.

6. After Cutting
Some cutting methods may leave contaminants, oils, and burrs and splatters on the surface of the titanium sheet. These residues not only affect the quality of the cut, but may also affect the subsequent use and appearance of the titanium sheet. Therefore, titanium plates must be properly surface treated, such as deburring, cleaning and removing spatters, to ensure that their surfaces are smooth and free of contaminants.

Conclusion

There are various ways to cut titanium sheet, after reading the above information, you may have a clearer understanding of how to cut titanium sheet.As a professional China titanium sheet manufacturer, THT not only provides high quality titanium sheet products, but also customized titanium sheet cutting services according to your specific needs and applications. If you still have any questions or needs about titanium plate cutting, please feel free to contact us, we will be happy to provide you with professional solutions.