As an innovative and cost-effective method for carrying out multiple-axis CNC machining, 3 1 2 1 2 -axis CNC machining technique adds an automatic indexing/rotary table with two additional discrete rotations to a regular 3-axis CNC machine, to improve its ability and efficiency for machining complex sculptured parts. In this work, a new tool path generation method to automatically subdivide a c...

We fabricated self-standing films of cellulose nanocrystals (CNC) and electrospun composite fibers with CNC and polyvinyl alcohol both with magnetic properties arising from cobalt iron oxide nanoparticles in the CNC matrix. Aqueous dispersions of cobalt-iron oxide nanoparticles (10–80 nm diameter) and CNCs (ca. 150 nm length) were used as precursor systems for the films and composite fibers. Th...

We present a programming methodology and runtime performance case study comparing the declarative data flow coordination language S-NET with Intel’s Concurrent Collections (CnC). As a coordination language S-NET achieves a near-complete separation of concerns between sequential software components implemented in a separate algorithmic language and their parallel orchestration in an asynchronous...

Poly(L-lactide) (PLLA) is a semicrystalline thermoplastic which belongs to a biocompatible, biodegradable and bioresorbable polymers. PLLA also fulfills many requirements of the traditional nonbiodegradable packaging materials and it is therefore considered of great value from an ecological point of view due to its biobased character. Nonetheless, there are several aspects such as its slow crys...

The testing devices for performance testing on a CNC machine tool were developed. A small-radius contouring device was employed for checking the dynamic performance of a CNC machine tool. This device was composed of a laser diode and a quadrant sensor. For checking geometric error of a CNC machine tool, a long-radius contouring device was employed. The optic encoder contouring systems were also...

CNC machining is known as an advanced machining process increasingly used for modern materials. This paper outlines modeling methodology applied to optimize cutting parameters during CNC milling with ball end mill tool. The parameters taken into account were radial depth of cut and feed per tooth. A predictive model was based on artificial neural network approach. Key-Words: Modeling, artificia...

CnC is a system for describing the structure of parallel computation, or coordinating the dataand control-flow between the individual steps of a computation [2, 3]. A CnC application specifies a set of discrete step functions, and the data collections used as input to and output from those step functions.1 The CnC coordination language describes the relationship between a specific invocation of...