Development of design software in the last two decades has led to marketing products with complex shapes; which, cannot be materialized without the aid of the computer. For some product development processes, reverse engineering (RE) allows generating surface models by three-dimensional scanning techniques, and consequently this methodology permits to manufacture different parts and tools , shortening the development time. The paper presents a redesign process applied on a thin walled plastic component using the Reverse Engineering technique. The part was scanned, modified and subject to simulations that will certity the flow and filling of the cavity.

No abstract

No abstract

Processing by injection is the technological process by that the thermoplastics material is injected, under pressure, in the cavity of a mould, where it cools down and solidifies. This process is the most common method for obtaining plastic materials. Injection moulding of thermoplastics has emerged as the premier vehicle for delivering high quality, value added commercial products. Continued global competitiveness has increased standards for product capability and quality while requiring reduced product development time and unit cost. Despite advanced design methods and new process technologies, it is becoming apparent that the injection moulding process is neither flexible nor robust. This paper presents a set of experiments that focused on particular processing conditions of injection through narrow section, thin-wall injection and microinjection. In these cases, the ultrasonic activation does not play an important role as single influence factor but could amplify or strengthen the influence of classical setting parameters of the process: mould temperature, injection pressure and temperature

The purpose of this paper is to analyze the behavior of the industrial robot Yamaha YK400, SCARA model, used in machining operations (drilling, milling, deburring). In the industrial robot structure was integrated a mill Lund 79314. The mechanical structure of the robot is under the influence of vibration during the milling process. This paper aims to determine the process parameters vibrational based on the position of the characteristic point, speed milling and material. To achieve the intended purpose, we used a data acquisition system composed of acceleration sensor, acquisition boards, LabView. The obtained results were analyzed and interpreted.