Quality improvement in projects is the final major process of quality management in projects. Continuous quality improvement in projects, often referred to as continuous improvement process in ...projects, is a continuous effort to improve project activities with the aim of increasing the quality of products, services or processes resulting from the project. The major quality improvement process will change continuously during the course of the project and the responsibility for updating the quality improvement process lies with the project manager.
Quality Management in Projects - Quality Planning Luca, Liliana; Cîrţînă, Daniela; Cirtina, Liviu Marius
Applied Mechanics and Materials,
10/2014, Volume:
657, Issue:
Engineering Solutions and Technologies in Manufacturing
Journal Article
Peer reviewed
The project is defined as an ensemble coordinated by some activities accomplished in order to reach a well determined purpose, namely the project defines a process. Quality management in projects ...includes the processes necessary for providing the fact that the project satisfies the necessities it had been accomplished for. The quality planning function must remain present throughout the project life cycle. The settlement of the main (strategic) objective of the project and of the lower objectives together with the establishment of the methods by means of which these objectives are reached represent the quality planning in projects. After fixing quality strategic objective of the project it pass to the first major process of quality management in projects and namely to the quality of the planning projects.
In the practice of organizations, we notice the existence of a problem which influences negatively the operating parameters of a product and it has to be very accurately identified and proposals have ...to be drawn-up in order to remove it. This paper presents a method for assessing the quality of welding by applying one of the classic instruments of quality management. The clauses that generate welding defects are identified and classified. The causes are also grouped in two large categories: positive causes and negative causes depending on the effect they have on the studied problem. An Ishikawa diagram with a new formula 4M+4RM was proposed, to separate the positive causes from the negative ones. The importance of this method is also mentioned in the analysis of quality products.
The study on the roughness of Hardox cut laser parts is exploited in this article ranging from input parameters (laser power, pressure, cutting speed) to a Taguchi reduced to 9 references and then ...replicated under the same conditions 4 times. For the experiment, a fractional factorial plan L339 was chosen for three experimental parameters (P, v, p), each varied at 3 distinct levels. The blank used was HARDOX400 steel sheet with a thickness of 10 mm. This thickness is suitable for the study of several parameters that characterize the quality of laser cut parts: slot width, taperedness, flange roughness, dimensional precision. With the help of Statistica 7, the prediction and correlation formula of the influence factors were highlighted. DOE and SSM were used to obtain roughness while maintaining a constant parameter - laser power and simultaneously varying the pressure and cutting speed. It is found that pressure is a dominant influence factor.
In this paper is presented a statistical method for calculating the establishment of tolerances of a chain of complex dimensions, method which is applied quickly and efficiently by a computer ...program. The question that arises is the influence of a reducer shaft axis non-parallelism that can lead to some shortcomings in its operation. These deficiencies are based on the size of deviation from parallelism of the axes of the two shafts. For their removal was necessary to study the chain of dimensions which was formed to mount the type of reducer 1400-30/7ERC. Using the data obtained in practice by running a computer program achieved CALTOL was determined statistical tolerance deviation from parallelism between the axis reducer shafts.
Quality management in projects includes the processes necessary for providing the fact that the project satisfies the necessities it had been accomplished for. The quality planning function must ...remain present throughout the project life cycle. The quality assurance in the projects can be defined as part of quality management in projects that provide confidence that the requirements relating to the quality of the activities carried out in the project will be met. We propose a model in the work for the implementation of the quality assurance process at every stage of a project, from project idea to project results. The proposed model, called PDP/PIP (project definition process/ project implementation process) is described as an application for a project machinery industry standard tools. The outcome of the project quality assurance is a quality improvement plan. This represents a document which is specified actions designed to raise the efficiency of quality management processes in projects and quality of results of the project.
(1) Background: The objective of this study was to develop the field of mechanisms that generate aesthetic curves, as they can be useful in designing machines for the manufacture of highly beautiful ...products. We started from the image of the Flower of Life and we set out to build mechanisms in the field of mechanical engineering that can generate this image. (2) Methods: First, we studied in detail the geometry of the figure. Secondly, based on the mathematical considerations, we made the synthesis of a mechanism able to trace this image, based on the Geneva mechanism with intermittent movement. We completed this mechanism with other kinematic chains, so we generated the proposed curve. Next, we made the synthesis of the second generating mechanism. This was a gear mechanism with compound profiles to which we added additional kinematic chains to generate the Flower of Life curve. Further on, kinematics was applied to confirm the drawing of the curves with the closed loop method. (3) Results: The results obtained following the study and presented in the paper show that the two created mechanisms generate images (trajectories) identical to the Flower of Life. Moreover, other images similar to the Flower of Life, with great artistic potential, were obtained. (4) Conclusions: The aim of the study was achieved, the authors proposed two new mechanisms which generate a highly aesthetic design image—the “Flower of Life”. The paper provides all the notions of structure and kinematics that are necessary to calculate the mechanisms and also analyzes other kinematic possibilities of the created mechanisms. The paper contributes to the development of a new field in the Theory of Mechanisms: generating aesthetic curves.
In this paper is presented a case study on the analysis of the technological process using a statistical program. To analyze the technological process it is necessary to take into account the volume ...of the sample. The analyzed characteristic is of a landmark that is part of the whole of a milk processing machine. Based on the summary diagram, based on the determination of the values of statistical parameters and technological process capability indices, the analysis of the technological process capability is made and conclusions are drawn regarding the process.
In this paper we present the technical state in which the first section of the cupsholder wheel arm assembly (elinda) of a coal suction machine, is found following the technical expertise. The ...rehabilitation to which the whole mechanism will be subjected will be done by carrying out the intervention works that will restore to the normal operating parameters both the structural and the functional part. The paper presents: the modalities of verification of section I as well as the proposed technical solutions for its rehabilitation
PDF
