APKT Shoulder Milling Insert
Key Features
- Diverse Grade Adaptability: The rich grade system allows for flexible selection according to different machining requirements, ensuring optimal machining results.
- Negative Rake Angle Design: The unique negative rake angle design endows the insert with higher strength and stability during cutting. It is suitable for a variety of machining conditions.
- High - Precision Specifications: Precise dimensional specifications, such as width, thickness, hole diameter, corner radius, and length, guarantee machining accuracy and meet the requirements of high - precision machining.
- Wide Industry Application: Widely used in industries such as automotive manufacturing, aerospace, and tool and die making, it has gained high market recognition and is a reliable choice for metalworking in multiple fields.
Technical Specifications
Geometric Parameters
Rake Angle: The negative rake angle design helps enhance the strength of the cutting edge of the insert. It can maintain stability under high cutting forces, reduce the risk of insert breakage, and is suitable for machining high – hardness materials and roughing processes.
Clearance Angle: The optimized clearance angle effectively reduces the friction and wear between the flank face of the insert and the machined surface of the workpiece. It ensures the surface quality of the machining and extends the service life of the tool.
Edge Inclination Angle: A reasonable edge inclination angle setting controls the outflow direction of the chips, enabling the chips to be discharged smoothly from the machining area. This prevents the chips from scratching the machined surface and improves the cutting performance of the insert, enhancing the stability of the cutting process.
Material Characteristics
Cemented Carbide Substrate: High – quality cemented carbide is used as the substrate material of the insert. It has high hardness, high strength, and good wear resistance. It can maintain the cutting performance of the tool under high – speed cutting and heavy – duty machining conditions, ensuring the stability of machining accuracy and surface quality.
Coating Technology: Some APKT inserts adopt advanced coating processes, such as TiAlN coating. This coating has high hardness, low friction coefficient, and good thermal stability. It can effectively reduce the cutting temperature, improve the wear – resistance and anti – adhesion properties of the tool, extend the service life of the tool, and is especially suitable for high – speed machining and machining of difficult – to – cut materials.
Cutting Performance Parameters
Cutting Speed Range: The cutting speed range of APKT inserts varies according to different workpiece materials and machining requirements. Generally, when machining easily – machinable materials such as aluminum alloys, the cutting speed can reach a relatively high level, such as 200 – 800m/min. When machining steel parts, the cutting speed is usually in the range of 80 – 300m/min. For difficult – to – cut materials such as titanium alloys, the cutting speed is generally controlled at 30 – 120m/min.
Recommended Feed Rate: The selection of the feed rate needs to comprehensively consider factors such as the workpiece material, machining accuracy requirements, and tool strength. During roughing, the feed rate can be appropriately increased to improve machining efficiency. For example, for the roughing of steel parts, the feed rate can be set at 0.1 – 0.5mm/r. During finishing, to ensure the surface quality, the feed rate should be relatively small, generally at 0.05 – 0.2mm/r.
Cutting Depth Capacity: APKT inserts have a certain cutting depth capacity, and different models have different cutting depths. Taking the APKT1604 as an example, under suitable cutting conditions, its maximum cutting depth can reach about 5mm, which can meet the requirements of various machining processes for cutting depth.
FAQs
1.How do I know which APKT insert grade is suitable for my machining task?
The choice of insert grade depends on multiple factors. First, consider the workpiece material. For instance, if you’re machining soft materials like aluminum, you can use a grade optimized for high – speed machining with good chip evacuation. Harder materials such as alloy steel require inserts with higher hardness and wear – resistance. The machining operation also matters. Roughing operations need inserts that can handle high cutting forces, while finishing operations demand inserts that can achieve a fine surface finish. Additionally, think about the cutting conditions like cutting speed, feed rate, and depth of cut. High – speed cutting may call for a grade with better heat resistance.