The advantage of this type of cutter structure is that when there is an error between the cutter block and the cutter body, the grinding can be performed to ensure the assembly precision; the compression bolt is located on the flank face and is not easily damaged by the chip. The plate holder is more suitable for heavy-duty cutting because it greatly increases the rigidity of the blade in the direction of force. After increasing the amount of cutting, it does not cause large vibration, which is beneficial to the improvement of production efficiency and processing quality. Previous page
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With its high accuracy, wide rangeability and reliable performance, Sealand meter has been applied in many kinds of industries during the last 8 years. Unlike others who only focus on the measurement of liquid at normal pressure & temperature, Sealand has conquered the difficulty in the measurement under severe conditions, such as high pressure, high viscosity, high & low temperature.
Besides, Sealand lab is
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4 Selection of cutting amount
The cutting depth of the heavy turning roughing stage can reach 50mm on one side, the corresponding cutting speed is about 10m/min, and the feed rate is 1.5mm/r. Since the roughing stage is to remove the allowance as the main processing purpose, in accordance with the principle of determining the cutting allowance in machining, in order to improve the cutting efficiency, the cutting depth should be increased. Due to the large cutting depth during heavy cutting, the cutting force is large, and the corresponding cutting speed is generally selected to be 10 to 15 m/min, and the feed amount is 1 to 2 mm/r. With such a cutting amount, the surface roughness of the workpiece is relatively poor, and only Ra12.5 to Ra6.3 can be achieved, and the roughness value can be increased by the rolling method to meet the requirements of the subsequent processing.
5 Conclusion
Compared with ordinary turning, heavy-duty turning differs greatly from theoretical calculations. At present, many processes and tool materials for heavy-duty turning are based on ordinary machining. This is not entirely applicable, so it needs to be further explored.
1. Controlled completely by automatic system, to minimize personal error.
2. Equipped with 3 METTLER TOLEDO scales with accuracy 0.014%.
3. Device extended uncertainty: 0.05%.
4. Certified by Zhejiang Institute of Metrology which is authorized by ILAC; Sealand meters are also approved by them after test in their lab with ISO/IEC 17025:2005 standard.