This contribution focuses on solving a customer complaint accepted by an organization for manufacturing of automobile seats. The occurrence of nonconformity and causes of undetected nonconformity in the manufacturing process of automobile seats is solved by seven new quality management tools. Causes, effects, activities leading to elimination of the problem, remedies and precautions for possible problems within solution implementation, and time schedule with individual reserves are defined. Results lead to solving the issue both on the part of supplier and on the part of the organization for manufacturing of automobile seats
The aim of this article is the introduction of statistical control in the manufacturing process of Ribe Slovakia, k.s. (limited partnership) in Nitra, Slovak Republic, which consists of determining the capability of production equipment. The chosen production equipment is a multistage forming press SACMA SP 260, which was used in the process of cold forming when manufacturing screws of type WZ 13 340 intended for engine blocks. Determining the capability of production equipment involves removing 50 consecutive products, identification and evaluation of stability (construction of card and card), determination of normality (construction of frequency distribution series, histogram and cumulative relative frequency curve), and calculation of capability indices of production equipment Cmand Cmk.
Final inspection represents the last inspection operation of production line before the product reaches a customer. If nonconformities are not detected within the production process, final inspection has to ensure their detection. This contribution focuses on the final inspection results of the manufacturing process of automobile’s front seats. The outputs of final inspection are prepared by means of quality management tools (Pareto analysis). Inspection items, their changes, remedies and precautions leading to seat quality improvement are defined. The evaluation of final inspection for the following period confirms the improvement of the manufacturing process or control quality for selected inspection items.
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