Blue Flag Metalworking: High-speed, efficient machining of engine 5C parts

As the core component of the automobile, the engine is not only complicated in structure, but also has many machining difficulties. It is mainly concentrated on the 5C parts. How to overcome these processing difficulties and bring higher production efficiency under the premise of ensuring quality. The target of the major tool suppliers. In this regard, the Feed-Jet high-speed face milling cutter developed by Lanzhi Metallurgy not only has the advantages of high speed and high efficiency, but also brings the most economical benefits to customers due to the characteristics of grinding and re-use. In addition, Kieninger, a subsidiary of the LMT Group, has developed a fine-toothed precision boring tool with an automatic compensation structure to achieve extremely high geometric accuracy of the cylinder bore and a higher tool life due to the introduction of CBN cutting material. , to achieve an improvement in cutting economy.

Key words: cylinder head, cylinder block, cylinder bore fine, aluminum alloy finishing

China's auto industry has been booming in the past two years. The output has increased from 18.26 million in 2010 to 18.42 million in 2011. In 2012, it has been steadily increasing in structural adjustment, especially in the car market, which has a large proportion. The development trend has directly and indirectly put forward higher requirements for major parts and automakers. On the basis of quality improvement, it puts higher requirements on processing efficiency. Therefore, it has brought new challenges and opportunities to major suppliers, such as machine tool builders and tool makers.

As the core component of the automobile, the engine is not only complicated in structure, but also has many machining difficulties. It is mainly concentrated on the 5C parts (ie, cylinder block, cylinder head, crankshaft, camshaft, connecting rod). How to overcome these machining difficulties, Under the premise of ensuring quality, it brings higher production efficiency and has become the target of major tool suppliers.

High-efficiency face milling system-(Feed-Jet)

蓝帜金工 高效面铣系统-Feed-Jet

Car engine, especially small displacement gasoline engine, from the perspective of fuel economy and high efficiency, the cylinder block and cylinder head are mostly made of aluminum alloy, such as: ALSi9Cu3, GD-ALSi7 and other processed materials. Milling accounts for about 40% of the cylinder and cylinder head machining. Therefore, the milling efficiency is particularly effective in improving the machining efficiency of the entire cylinder and cylinder head. For this purpose, Kieninger, a subsidiary of the LMT Group, has developed a new high-speed face milling system called the Feed-Jet high-speed face milling system.

Features: 1. Dense gear design (for example: cutter head with diameter of 125, standard configuration of 18 teeth); Rack type clamping structure and steel cutter head; 3. μ level precision adjustment; 4. Easy maintenance structure design; 5. It can be used for grinding and changing, and it can be used repeatedly (repeated up to 6 times); Aluminum alloy material rough milling, fine milling, are applicable; 7. Finishing of cast iron can be achieved by replacing it with a CBN cutting edge.

Typical case analysis:

Customer: DC (an internationally renowned engine factory)

Workpiece: cylinder head

Material to be processed: GD-AL Si 7 aluminum alloy

Machine tool: Two-axis plane

LMT tool: 1D-Feed Jet, tool diameter: 100, number of cutting teeth: 16

Cutting parameters: n=11000RPM, Vc=3455 m/min. fz=0.07 mm/tooth. Vf=11500 mm/min. ap=0.5 mm (cutting depth)

Cutting effect:

Tool life: 15,000 pieces (unrepaired, 3 times longer than competitors' 5000 pieces)

Surface finish: Rz=6.3

Processing beat: 30% increase.

summary:

Feed-Jet not only has the advantages of high speed and high efficiency, but also provides customers with the most economical efficiency due to the characteristics of grinding and re-use. Therefore, it is an efficient and economical milling system, especially suitable for cylinders and cylinder heads. Aluminum alloy milling.

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