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Analysis of the Application of Ultra-Hard Cutting Tool Solutions in Hard Turning

Analysis of the Application of Ultra-Hard Cutting Tool Solutions in Hard Turning

Coatings exhibit significantly superior cutting performance compared with TiN coatings, and the service life of cutting tools demonstrates that PVD coatings offer numerous advantages. However, certain coatings such as Al₂O₃ and diamond tend to be deposited using CVD techniques. Al₂O₃ is a thermally stable and oxidation-resistant coating that effectively insulates the tool’s geometry from the heat generated during machining. By leveraging ultra-hard tool solutions, it is possible to integrate the benefits of various coatings, achieve optimal cutting performance, and meet the demands of machining operations. Next, let us explore an analysis of the application of ultra-hard tool solutions in hard turning!

15

2022

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07

Quick tooling change via a zero-point positioning system

Quick tooling change via a zero-point positioning system

Quick tooling change via a zero-point positioning system

25

2022

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06

Indexable Drill Bits and Their Competitive Advantages

Indexable Drill Bits and Their Competitive Advantages

Indexable drill bits and their competitive advantages.

25

2022

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06

What milling cutter should be used for machining aluminum alloy?

What milling cutter should be used for machining aluminum alloy?

Currently, machined aluminum parts are mainly categorized into two major types: wrought aluminum alloys and cast aluminum alloys. So, what kind of milling cutter should be used for machining aluminum alloys? Is it better to use a dedicated aluminum-machining end mill or other specialized tools for aluminum alloys in order to achieve higher machining efficiency? This article discusses the optimal milling cutter for aluminum alloy machining from several aspects: the characteristics of aluminum alloy milling, the selection of cutting tools, and the choice of cutting parameters. I. Characteristics of Aluminum Alloy Machining Milling aluminum alloys has the following key characteristics: 1. Low Hardness of Aluminum Alloys Compared with titanium alloys and other quenched steels, aluminum alloys have relatively low hardness; however, heat-treated or die-cast aluminum alloys can exhibit much higher hardness. The typical HRC hardness of ordinary aluminum sheets is generally below 40. Consequently, when machining aluminum alloys, the cutting tool experiences a lighter load. Moreover, due to aluminum’s excellent thermal conductivity, the cutting temperature during milling is relatively low, allowing for higher cutting speeds. 2. Low Plasticity of Aluminum Alloys Aluminum alloys have low plasticity and a low melting point. During machining, they tend to adhere to the cutting tool, chip evacuation is poor, and surface roughness tends to be high. In fact, the main challenges in machining aluminum alloys are tool sticking and poor surface finish. As long as these two issues—tool sticking and surface quality—are effectively addressed, most problems associated with aluminum alloy machining can be readily solved. 3. Rapid Tool Wear If an inappropriate tool material is selected, machining aluminum alloys often leads to accelerated tool wear due to issues such as tool sticking and poor chip evacuation. II. What Kind of Milling Cutter Should Be Used for Machining Aluminum Alloys? For general aluminum alloy machining, a three-flute aluminum-specific end mill is typically used. Depending on the specific machining conditions, a two-flute ball-nose end mill or a four-flute flat-bottom end mill may also be employed. However, Nanjing Jianchuanshi recommends that, in most cases, a three-flute flat-bottom end mill is the best choice. 1. Selection of Tungsten Carbide End Mills for Aluminum The number of flutes is usually three, and the material is typically YG-class cemented carbide, which helps reduce the chemical affinity between the tool and the aluminum alloy. Many CNC tool manufacturers offer dedicated series of end mills for aluminum alloy machining, such as the US200 series from Jinlu and the AL series from Swiss Fraisa. 2. High-Speed Steel Tools High-speed steel end mills for aluminum are sharper and can also perform well in machining aluminum alloys. III. Cutting Parameters for Milling Aluminum Alloys When machining ordinary aluminum alloys, high-speed, high-feed milling is generally recommended. Additionally, a larger rake angle should be chosen whenever possible to increase chip space and reduce tool sticking. For finishing operations on aluminum alloys, water-based cutting fluids should be avoided to prevent the formation of tiny pinholes on the machined surface; instead, kerosene or diesel oil is typically used as the cutting fluid for aluminum sheet machining. The cutting speed for aluminum alloy milling tools varies depending on the tool material, tool parameters, and machining process. Specific cutting parameters should be determined based on the manufacturer’s recommendations.

25

2022

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06

Heat-shrink tool handles are being increasingly widely adopted in the automotive, electronics, and aerospace manufacturing sectors.

Heat-shrink tool handles are being increasingly widely adopted in the automotive, electronics, and aerospace manufacturing sectors.

Thermal Assembly and Measurement Integration: The Solis is equipped with a highly integrated system module, including a high-speed heating coil and a high-precision camera, which enables the thermal assembly, cooling, and measurement of heat-shrink tools without the need for repeated tool repositioning or clamping, thereby improving efficiency and measurement accuracy. Featuring a patented dual-station spindle, users can pre-prepare the next heat-shrink tool holder for thermal assembly or measurement, significantly accelerating the production cycle and enabling continuous assembly. After calibration, the two spindles share the same database, ensuring accurate and efficient operation.

21

2022

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06

High-Pressure Cooling System and Cooling Methods for CNC Deep-Hole Drilling

High-Pressure Cooling System and Cooling Methods for CNC Deep-Hole Drilling

In summary, a superior process combination for high-pressure cooling in CNC deep-hole drilling can be achieved through the use of a high-pressure cooling system, open-type drill flutes, coated carbide cutting tools, and single-pass tool retraction. These conditions constitute the fundamental requirements for the successful execution of deep-hole machining with CNC deep-hole drills.

07

2022

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06

Ultra-Hard Cutting Tool Solutions to Boost Productivity

Ultra-Hard Cutting Tool Solutions to Boost Productivity

Achieving high productivity hinges on the selection of cutting tools and advanced cemented-carbide tool solutions. In today’s highly competitive metalworking environment, manufacturers are striving to boost productivity; however, this ongoing challenge necessitates increasing material removal rates. To meet this objective, it is essential to optimize feed parameters, increase cutting depth, and maximize cutting speeds. Let’s now explore how advanced cemented-carbide tool solutions can drive productivity improvements!

17

2022

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05

Development and Application of Ultra-Hard Cutting Tool Solutions

Development and Application of Ultra-Hard Cutting Tool Solutions

Superhard cutting-tool materials refer to natural diamond, as well as synthetic diamond and cubic boron nitride (CBN) whose hardness and performance are comparable. Given the high cost of natural diamond, industrial applications of superhard cutting tools typically rely on synthetic polycrystalline diamond, polycrystalline cubic boron nitride, and their composite materials. Let us now explore the development and applications of superhard cutting-tool solutions.

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2022

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05

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