Composition and Characteristics of Reaming Tools for CNC Milling Machines
The standard machine reamer is composed of a working part, a neck, and a shank. There are three shank forms: straight shank, taper shank, and sleeve type, to meet the clamping requirements of different CNC milling machines.The working part (cutting edge part) of the reamer is divided into a cutting part and a calibration part. The cutting part is conical and undertakes the main cutting work. The calibration part includes a cylinder and an inverted cone. The cylindrical part mainly plays the role of guiding the reamer, calibrating the machined hole, and polishing. The inverted cone mainly plays the role of reducing the friction between the reamer and the hole wall and preventing the hole diameter from expanding. Single-edged reamer with indexable carbide inserts. The single-edged reamer with indexable carbide inserts has high cutting efficiency and durability. The insert can be replaced, reducing tool cost. It is suitable for processing materials with high hardness, such as alloy steel, stainless steel, etc.Floating reamerThe floating reamer can automatically adjust the center and compensate for the deviation between the machine tool spindle and the workpiece hole, improving the reaming accuracy.It is especially suitable for processing occasions with high requirements for hole position accuracy.
Coolant Selection
Reaming on steel
Emulsified liquid is suitable for reaming on steel. Emulsified liquid has good cooling, lubricating, and rust-proof properties, which can effectively reduce the cutting temperature, reduce tool wear, and improve the surface quality of holes.
Reaming on cast iron parts
Sometimes kerosene is used for reaming on cast iron parts. Kerosene has good lubricating properties and can reduce the friction between the reamer and the hole wall and prevent the hole diameter from expanding. However, the cooling effect of kerosene is relatively poor, and attention should be paid to controlling the cutting temperature during processing.
Processing Technology Requirements for Reaming on CNC Milling Machines
Hole position accuracy
Reaming generally cannot correct the position error of the hole. Therefore, before reaming, the position accuracy of the hole should be guaranteed by the previous process. During processing, the positioning of the workpiece should be accurate and reliable to avoid affecting the position accuracy of the hole due to workpiece movement.
Processing sequence
Generally, rough reaming is performed first, and then fine reaming. Rough reaming mainly removes most of the allowance and provides a good processing foundation for fine reaming. Fine reaming further improves the machining accuracy and surface quality of the hole.
Installation and adjustment of tools
When installing the reamer, ensure that the connection between the tool shank and the machine tool spindle is firm and reliable. The center height of the tool should be consistent with the center height of the workpiece to ensure the reaming accuracy. For floating reamers, adjust the floating range according to processing requirements to ensure that the tool can automatically adjust the center.
Media Contact
Company Name: Qingdao Taizheng Precision Machinery Co., Ltd.
Email:Send Email
Phone: 13605328581
Address:C-101, Building 31, Zhongnan High tech Jimo Technology Innovation Industrial Park, No. 76 Dazhong 1st Road, Jimo District
City: Qingdao
Country: China
Website: https://www.ncmillingmachine.com/
