During the material removal stage in stone rough processing, milling type has been widely explored, which, however, may cause time and consumption, as well substantial stress for environment. To improve rate waste reuse processing three-dimensional products with a special shape, this paper, circular saw disc cutting is explored to cut convex polyhedron out of blank box, which approaches target ...

The two-dimensional cutting stock problem is the problem of cutting two-dimensional parts from a sheet such that the cutting requirements are met and no cuts overlap. This paper presents a genetic algorithm for the cutting-stock problem which handles non-convex, irregularly shaped parts and regular sheets. The objective is to maximize the utilization of the sheet for a given bill of materials. ...

Quality improvements in laser cutting of mild steel have been achieved by a newly developed model-based optimization strategy and its application to one-dimensional cut has been reported early. The specific aims of this paper are to assure quality of cut when cornering and generating small diameter holes. Such routines encompass a large proportion of all features processed on laser cutting syst...

Drilling is one of the most useful metal cutting processes and is used in various applications, such as aerospace, electronics, and automotive. In traditional drilling methods, the thrust force, torque, tolerance, and tribology (surface roughness) are related to the cutting condition and tool geometry. In this paper, the effects of a pre-center drill hole, tool material, and drilling strategy (...

Selection of feasible cutting patterns in order to minimize the raw material wastage which is known as cutting stock problem has become a key factor of the success in today’s competitive manufacturing industries. In this paper, solving a rectangular shape medium size two-dimensional cutting stock problem is discussed. Our study is restricted to raw materials (main sheets) in a rectangular shape...

Cutting Stock Problems (CSP) arise in many production industries where large stock sheets must be cut into smaller pieces. We present a parallel algorithm based on Viswanathan and Bagchi algorithm (VB) solving the Two-Dimensional Cutting Stock Problem (2DCSP). The algorithm guarantees the processing of best nodes first and does not introduce any redundant combinations others than the already pr...

the built up layer thickness in secondary deformation zone is one of the important parameters in metal cutting process. the built up layer (bul) is formed in second deformation zone near the tool-chip interface in the back of the chip. this parameter influences the tool life and machined surface quality. this bul should not be confused with the built up edge (bue). the deformation of the bul in...

This paper suggests a exible framework for n-dimensional crossover, consisting of cutting, classi cation, and copying of genes. We prove that under this framework, any cutting strategy generates two equivalence classes of genes, making the framework appropriate as a crossover scheme. Three notable features of this framework are: (i) it enables more e ective use of genes' geographical linkage, (...

Cutting and packing problems have been widely studied in the last decades, mainly due to variety of industrial applications where emerge. This paper presents an overview solution approaches that proposed for solving two-dimensional rectangular cutting problems. The main emphasis this work is on two distinct belong problem family. first aims place onto object maximum-profit subset items, is, out...