Application of Grinding Force Online Monitoring and grinding wheel Adaptive Feeding in Superhard Grinding
Abstract In the grinding process, the abrasive grains deform the metal a lot, thus forming the grinding force. The axial extrusion force of the abrasive particles on the Blade is very large, which causes the deformation of the process system composed of the machine tool, the blade and the grinding wheel, which affects the grinding accuracy. At the same time, the grinding wheel on the surface of the blade during the grinding process...
In the grinding process, the abrasive particles deform the metal a lot, thus forming the grinding force. The axial extrusion force of the abrasive particles on the blade is very large, which causes the deformation of the process system composed of the machine tool, the blade and the grinding wheel, which affects the grinding accuracy. At the same time, the intense friction of the grinding wheel on the surface of the blade during the grinding process produces the following effects:
① Grinding sparks generated by the oxidation and combustion of wear debris in the air will cause fires (oil-based grinding fluid);
② Burn the surface of the blade;
③ Affect the grinding accuracy.
In the grinding process of indexable inserts, the grinding force is the resistance of the abrasive particles to the deformation of the workpiece material and the friction between the abrasive particles and the surface of the workpiece during grinding. Grinding force can be decomposed into radial component force Ft and axial component force Fn according to the relative position of the blade and the grinding wheel. Generally, the axial component force is relatively large. With the difference of the blade material and the characteristics of the grinding wheel, Fn/Ft=1.5~3; when the grinding fluid with good lubrication performance is used, the Fn/Ft can reach up to 4 due to the reduction of friction.
1 is the indexable insert; 2 is the end face of the grinding wheel; 3 is the side of the grinding wheel; 4 is the grinding fluid nozzle; Vc is the rotation speed and steering of the grinding wheel; Fn is the axial component of the grinding force; Ft is the radial component of the grinding force
The on-line monitoring function of the grinding force of Agathon tool grinder continuously displays the main processing parameters-axial grinding component and radial grinding component in real time. These forces play a key role in the entire grinding process. Precise measurement and continuous monitoring make the current grinding process clearly visible. With the help of the online monitoring function of the grinding force, the grinding process parameters can be quickly set, and they can be continuously and reasonably optimized.
Under specific grinding conditions, there is an optimal grinding force range. The grinding force in this range can obtain higher metal removal rate, smaller surface roughness and longer grinding wheel life. Therefore, Switzerland Based on the online monitoring function of the grinding force, Agathon has further developed and introduced the adaptive feed function, a grinding technology that keeps the grinding force constant at a predetermined value during the grinding process.
Taking the grinding of welded CBN blades as an example, the allowance to be removed by the grinding wheel at different positions of the tool tip is not the same. The difference in the removal of the grinding allowance is close to 20%. Obviously, the feed amount of the grinding wheel is automatically adjusted In order to obtain the best grinding effect and the highest grinding efficiency.
As can be seen from the figure, according to the results of online monitoring of the grinding force, the machine tool automatically generates the grinding wheel feed curve to control the grinding wheel to grind the blade with the most appropriate feed. Using the adaptive feed function to grind CBN, the efficiency of PCD is increased by at least 40%.
Features and advantages
·Real-time display of grinding force curve on the machine tool display screen. Accurately measure the axial component force Fn of the grinding force and the radial component force Ft of the grinding force. The grinding force record data can be exported in multiple formats.
·Thanks to the online monitoring function of the grinding force, you can fully understand the current grinding force status.
·Switzerland Agathon is the first and only one to realize real-time monitoring of grinding force axial component Fn and grinding force radial component Ft at the same time.
·In the grinding of superhard materials such as CBN and PCD, the online monitoring function of grinding force plays a key role.
·When establishing a new process, with the help of online monitoring of grinding force, basic grinding parameters (setting of grinding wheel parameters, setting of dressing wheel parameters, grinding speed...) can be quickly defined.
·The existing process can be easily optimized to reduce production costs (shorten processing time, minimize dressing time, and increase the service life of the grinding wheel).
·The current production can be effectively monitored (the change of the grinding force directly reflects the increase or decrease of the grinding amount).
NAVIGATION
NEWS
- 2023-10-10Manufacturing Plasma Nanodiamond
- 2023-07-19Why is the difference between di
- 2023-07-11Saws are unstoppable and sharp -
- 2021-04-02Two national standards including
- 2021-04-012021 Qingming Festival Notice
CONTACT US
- Add: #1288 Industrial Park-Zone, Economy Development Zone, XiAn, ShaanXi, China
- Tel: 029-86522101
- Fax: 029-88740395
- Email: Sales@CoMaxChina.com
Your position: Home > Grinding wheel knowledge
Application of Grinding Force Online Monitoring and Grinding Wheel Adaptive Feeding in Superhard Grinding
PREVIOUS:Preparation technology of ultrafine spherical
NEXT: