In order to improve the precision and surface quality of Electrical Discharge Machining (EDM), the paper studies the application of complex programmable logic device (CPLD) used in pulse power for EDM, according to the characteristics of the device, using VHDL language input and schematic input method to design control circuit for EDM pulse power. Keyword: EDM; CPLD; VHDL language; pulse power

The configuration of an autonomous decentralized manufacturing system using multi agent technology is proposed to get more flexibility. In this digital factory, all elements such as machine tool, assembly machine, AGV, and product are installed as agents. The product agents take the initiatives in the system. When a blank workpiece is put on the shop floor, the product agent is dynamically gene...

17-4PH stainless steel is a martensitic precipitation hardening stainless steel that provides an outstanding combination of high strength, good corrosion resistance, good mechanical properties, good toughness in both base metal and welds, and short time, low-temperature heat treatments that minimize warpage and scaling. This valuable alloy is widely used in the aerospace, nuclear, chemical, pet...

The thesis presents a combined experimental and computational investigation of a novel thermochemical material removal mechanism for cutting of polycrystalline cubic boron nitride (PCBN) substrates through controlled crack propagation. The CO2-Laser/Waterjet machining system developed by the Iowa State University’s Laboratory for Lasers, MEMS, and Nanotechnology was utilized to achieve specimen...

Sculptured surface machining (SSM) is one of the continually used manufacturing processes for die/mold, aerospace(especially turbine blades), precision machine design, bio-medical devices and automotive industries. Developments of machining technologies for quality enhancement of machining results has become a very important fact in current real industry. Off-line feedrate adjusting is a new me...

Optimization of machining parameters for improving the machining efficiency is become important, when high capital cost NC machines have been employed for high precision and efficient machining. The strategy is to minimize the production time and cost by optimizing feed per tooth, speed, width of cut, depth of cut and tool diameter by satisfying all the constraints such as maximum machine power...

In the present research work, the effect of several process parameters on the machining characteristics of pure titanium (ASTM Grade-I) has been reported. The machining characteristics that are being investigated are tool wear rate and the quality of the machined surface in terms of the surface finish. The mechanism of material removal was has also been correlated with the machining conditions....

Abstract—Ultrasonic machining is one of the most widely used non-traditional machining processes for machining of materials that are relatively brittle, hard, and fragile such as advanced ceramics, refractories, crystals, quartz etc. Present article has been targeted at investigating the impact of different experimental conditions (power rating, cobalt content, tool material, thickness of work ...

In order to improve the availability and productivity of manufacturing systems, process monitoring has become an important matter in modern automated plants. The traditional monitoring technologies are based on single sensors and are insufficient, especially for manufacturing processes of highly complicated and automated systems. Instead, multi-sensor based technologies are developing rapidly a...

Computing algorithms and technology are providing organizations and companies new methods in order to achieve their goals. Understanding complex physical phenomena, in which multiple variables are interacting, over time leads to advancement in many engineering fields. This understanding is based on processing huge amounts of readings and data. In this paper, we show the power of data visualizat...