Quality Control System Analysis of Crank Shaft Products using Seven Tools Method at PT ABC
Abstract
In fierce business competition, companies must focus on improving product quality to meet consumer expectations. Quality is an important factor in consumer purchasing decisions, alongside price. Therefore, quality control is key in the company's entire production process. This research utilizes Seven Tools, a quality testing tool that includes various analysis techniques such as check sheets, histograms, scatter diagrams, Pareto diagrams, stratification, control charts, fishbone, and control chartss. The case study was conducted at PT ABC, a motorbike manufacturing company that dominates the Indonesian market. Even though they have succeeded in achieving market dominance, the company still faces the problem of spare part rejects which can harm profits. This research aims to reduce defects in Crank Shaft products with the help of Seven Tools, with a focus on identifying the causes of defects that result in non-fulfillment of quality standards. With appropriate corrective actions, it is hoped that PT ABC can continue to improve product quality and maintain its position in a competitive market.
Keywords: Product Quality, Quality Control, Seven Tools, Crankshaft
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