Energy efficient process planning for CNC machining

Abstract

Machining is one of the major activities in manufacturing industries and is responsible for a significant portion of the total consumed energy in this sector. Performing machining processes with better energy efficiency will, therefore, significantly reduce the total industrial consumption of energy. In this paper, a framework is presented to validate the introduction of energy consumption in the objectives of process planning for CNC machining. The state of the art in process planning and energy consumption in manufacturing research is utilised as a basis for the framework. A mathematical representation of the logic used is presented followed by two sets of experiments on energy consumption in machining to validate the logic. It is shown that energy consumption can be added to multi-criteria process planning systems as a valid objective and the discussion on using resource models for energy consumption estimation concludes the paper. These experiments represent a part test procedure machining proposal for the new environmental machine standard IS014955 Part 3.

Estimating the effect of cutting data on surface roughness and cutting force during WC-Co turning with PCD tool using Taguchi design and ANOVA analysis

“…Currently, most of these types of material are machined by grinding or electro-discharge (EDM) processes [2]. These processes are time-consuming and expensive, and contemporary companies find savings at every stage of production [3]. For the manufacture of WC-Co parts (for example, punches and construction parts), which are characterized by a high degree of hardness, high resistance to wear, and low surface roughness [4][5][6][7], alternative methods of production can be used.…”

Surface quality and machining time optimization based on feedrate correction function of tool trajectories types

“…In the first step we define and check an algorithm for feedrate correction for a plane surface for 5 tool trajectories type specific to plane machining [6].…”

“…The following cutter path will alter the geometry of this groove to leave a small cusp in the material. The size and shape of these cusps will categorize the roughness and appearance of the part [6]. The geometric properties of the surface will be dependent upon the cutter diameter, number of cutting flutes, the cutting speed, the step-over and the feedrate -factors that were studied widely in many researches.…”

A hybrid optimization approach for sustainable process planning and scheduling

“…Statistics has shown that the greenhouse gas emitted from the usage of energy sources such as electricity, coal, oil and gas during manufacturing accounts for more than 37% even 50% of the world's total greenhouse gas emissions [38]. In order to balance the multi-faceted dimensions of economic growth and environmental protection, a series of regulations and guidelines, such as the European standard EN 16001:2010 [10], lifecycle carbon labeling outlined by the life-cycle assessment frameworks of the ISO 14040: 2006 and ISO 14044: 2006 [19,20], and the Publicly Available Specification 2050: 2008 (PAS 2050) [47], have been developing.…”