In subtractive manufacturing, process monitoring systems are used to observe the manufacturing process, predict maintenance actions and suggest optimizations. One challenge, however, is that observable signals influenced not only by degradation of cutting tool, but also deviations in machinability among material batches. Thus it necessary first respective batch before making decisions. this stu...

Some manufacturing companies now use recycled aluminum alloys. It is important that they have the necessary data relating to control of machinability these Thus, this study on in turning two alloys by a 6061 R and R-T6 smelter was conducted. The aim provide solutions problem posed, which whether good skills, such as virgin To solutions, experimental designs were used influence cutting parameter...

     Bioinert ceramics, like alumina and zirconia are used mainly for replacements of bones, hip joints and for dental implants. Partially stabilized zirconia ceramics (PSZ or TZP with 3 mol.% or 5 wt.% Y2O3), appear as perspective bioinert ceramics because of their high strength and corrosion resistance. In order to fabricate complex shapes, it is essential to use a near ...

This paper presents a Laser Additive Manufacturing Process Planning (LAMPP) being developed at the University of Missouri-Rolla. The off-line planning recognizes difficult-to-build features from an STL file, selects optimal part orientation and building directions based on the skeleton information of the object geometry, and optimizes the sub-process sequences for deposition and machining. Duri...

In machining of Ti-6Al-4V alloy, the formation of saw tooth chips takes place at relatively low cutting speeds in comparison to other materials such as hardened steels. Study of chip morphology is important to understand the cutting force variation, surface integrity and chip breakability of the alloy. In this work, an attempt has been made to study the effect of cutting speed, feed rate and de...

Mesh model simplification has received increasing attention recent years. However, few algorithms are developed for the application of manufacturing. We have developed a simplification algorithm from the character of surface sculpture manufacturing, which can rapidly produce faithful approximations of the triangle mesh models. Moreover, the simplified mesh generated by our algorithm is composed...

In modern manufacturing engineering, tolerance synthesis is important because it directly e€ ects product quality and manufacturing cost. This paper introduces a new method for tolerance synthesis of machining parts. The new method consists of three steps. First, machining parts are evaluated using the second-order fuzzy comprehensive evaluation (FCE). Then, a mathematical model for tolerance a...

A Design Adaptation System for machining in toolmaking (DASMT) is proposed in order to avoid the knowledge gap between product and tool designers. The focus of the presented paper on the development of the Design Adaptation System for EDM (DAS-EDM). This system helps the designer to check the viability of individual features to their machinability by EDM process. The system reveals features, wh...