This paper presents an approach to analytically determine the most energy efficient toolpath strategy in mechanical machining. This was achieved by evaluating the electrical energy requirement of the NC codes generated for the zag, zigzag, and rectangular contour toolpath strategies. The analytical method was validated by performing pocket milling on AISI 1018 steel with the considered toolpath...

This paper presents an advance in monitoring and process control of surface roughness in CNC machine for the turning and milling processes. An integration of the in-process monitoring and process control of the surface roughness is proposed and developed during the machining process by using the cutting force ratio. The previously developed surface roughness models for turning and milling proce...

In this project a servo (position) controller that is able to receive commands via a Controller Area Network (CAN) is presented. Additionally, the board was developed to be as generally usable as possible in the sense that if the DC motor to be controlled does not have a rotary encoder, then a contactless magnetic rotary encoder (CMRE) module can be plugged into the board (via two SIL connector...

The objective in this work is to generate and discuss the stability results of fully-immersed end-milling process with parameters; tool mass m 0.0431kg, tool natural frequency 5700 rads , damping factor ξ 0 . 0 2 and workpiece cutting coefficient C 3.5 10 Nm ⁄ . Different no of teeth is considered for the end-milling. Both 1-DOF and 2-DOF chatter models of the system are generated on the basis ...

A new analytical cutting force model is proposed for micro-end-milling operations. The model calculates the chip thickness by considering the trajectory of the tool tip while the tool rotates and moves ahead continuously. The proposed approach allows the calculation of the cutting forces to be done accurately in typical micro-end-milling operations with very aggressively selected feed per tooth...

Productivity and part quality are extremely important for all machining operations, but particularly for 5-axis milling where the machine tool cost is relatively higher, and most parts have complex geometries and high quality requirements with tight tolerances. 5axis milling, presents additional challenges in modeling due to more complex tool and workpiece interface geometry, and process mechan...

This paper discusses the selection of tools and cutting parameters in milling operations. To carry out this research, an expert system has been developed based on numerical methods of performance evaluation. The knowledge base is given by limitations in process variables, which let us to define the allowable cutting parameter space. The mentioned limitations are instabilities due to tool-work-p...

The article analyzes the designs of various types cultivators, which are used to remove unwanted herbaceous and tree-shrub vegetation. Cultivators with disk, rotary, milling tine working bodies considered. It is shown that quite a lot material resources spent on carrying out agro technical care for valuable forest crops. noted mechanical method soil in aisles rows crops has become widespread, d...