ANALYSIS OF QUALITY PROBLEMS IN PRODUCTION SYSTEM USING THE PDCA INSTRUMENT

This model provides a framework for improving a process or system. It can be used as a guiding tool throughout the improvement project, for the development of specific projects when identified areas requiring improvement, or when anomalies or deviations from standard are detected in existing projects. The PDCA cycle has been created to be used as a dynamic model. Completing one of the stages of the cycle automatically leads to the start of the next stage. Following the principle of continuous quality improvement, the process can be reviewed at any time, and a new "change test" can begin

ELIMINATION OF LOSSES USED LEAN MANUFACTURING TECHNIQUES AND KAIZEN PHILOSOPHY

Lean manufacturing is today one of the most successful production strategies for improving competitiveness. To achieve success, a healthy production system based on solid concepts and philosophies is also required. Thus, it has been decided to adopt and accelerate the Lean Manufacturing concept on every site. The Kaizen or "Continuous Improvement by Involving All" method is a teamwork methodology used to systematically solve problems and apply improvement solutions

STRUCTURAL - FUNCTIONAL ANALYSIS OF THE SOIL LEVEL MACHINE

The soil leveling machine is of half – carried type and it works, as unit, with the wheeled tractor (or caterpillar tractor). The leveling plane is established by the rear wheels of the tractor and by the wheels of the hind train of the machine. The positive and negative soil dislevelments are given against the leveling plane. In the paper there are established the displacements of the mechanism for the automatic working regime, in which the cutting blade is execution element

MODIFICATION OF PERFORMANCE INDICATORS USING KANBAN METHOD AND GROWTH IN PRODUCTION LEVEL

The Kanban method is based on the principle of taking over the tasks by the team members as they become available (pull system), and not on the placement of the tasks without their being requested by the person to execute them (push system).Using the Kanban method, components are manufactured only when needed, so extra components are eliminated. As there is no extra production, waste cuts and scrap are reduced

Innovation Management: The Past, Present and Future of the Market

The paper presents aspects of innovation management, important issues based on literature and studies by Boston Consulting Group (USA). The case study lays on the survey made by BCG on 1500 subjects all over the world from all the industry sectors. The paper studies the importance of innovation management and makes predictions for research and development expenditure for Top4, Apple, Google, Tesla Motors and Microsoft, without taking into account rank number 5, Samsung, because the official income statement was in Korean Won

FEM Analysis of the Welding Seams Geometry in Case of Fillet Welds

The role of the welding seam is to achieve the non-removable joint between two or more parts. In principle, three geometric profiles of the welding seams can be obtained: straight profile; concave profile and convex profile. In practice, this geometric shape of the weld seam profile is very important, both in terms of the resistance of the joint to static stresses and in terms of its fatigue life. There are many factors that can influence the geometric shape of the weld seam: the welding process; welding regime; the nature of the filler materials used, the rehabilitation techniques applied and others. Often, this geometric shape of the weld bead is neglected, which is particularly dangerous due to the fact that an improper geometric shape can generate low mechanical strength in static loads or poor fatigue strength in variable loads. An optimum of the geometric configuration of the welding must be found, which reconciles both situations: the mechanical resistance in case of static stresses and also the fatigue resistance in case of variable loads. In this paper, an analysis will be made with finite elements for the straight and convex profile of the welding seams in the case of fillet welds subjected to fatigue. Several elements will be considered such as: damage; total deformation; fatigue sensitivity versus loading history; equivalent von Misses stress; safety factor

Increasing the performance of a system by changing reliability

The evaluation of the performance of a mechanical system takes into account many factors, including those related to competitiveness, technology and reliability. From the point of view of competitiveness, most companies use the same state-of-the-art information obtained either by applying their own research, development and innovation resources, or by purchasing technologies and patents from other companies or from the free market. Thus the resulting products, if not innovative products, are part of the same range. The global technological level has reached a very high degree of development, using unconventional technologies with high precision, robots, advanced mechanical systems and assembly lines with high productivity as well as verification and control systems on manufacturing flow which makes production to be uniform. Differences between manufacturers begin to appear when the degree of customer satisfaction changes, which is also found in the concept of reliability. Thus, the one who will find the technological solution with the same number of parts, but with a high reliability, will win the market. The paper aims at a detailed study with direct reference to how to increase reliability at the design stage