Six Sigma cho cải tiến quá trình trong sản xuất: Một nghiên cứu tình huống

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Tác giả: Nguyễn Vương Chí, Loan Nguyễn Thúy Quỳnh, Trần Thị Ánh Như

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kinh tế và Quản trị kinh doanh, 2023

Mô tả vật lý: tr.84-99

Bộ sưu tập: Báo, Tạp chí

ID: 372423

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Six Sigma is one of the most powerful management tools used to achieve process excellence. Six Sigma was developed as a method of quality improvement through the elimination of operational defects. Therefore, the objective of this study is to review the Six Sigma theory and apply it to the case study of company A, which specializes in the production of helmets in Vietnam, to reduce the styrofoam defect rate of helmets. The DMAIC (Define - Measure - Analyze - Improve - Control) process of Six Sigma is applied in this improvement project. The results show that the styrofoam with the main defect is the Structure. From there, the root causes are analysed, and solutions are suggested. After the improvement, the Structure defect rate decreased from 1.15% to 0.38%
the Sigma level increased from 3.77 and 4.17, cost of quality was significantly reduced. The success factors of the project are leadership, employee involvement, project management, and data collection. A barrier to the project is communication channels between levels of the company.Six Sigma là một trong những công cụ quản lý mạnh mẽ nhất được sử dụng để đạt được quá trình xuất sắc. Six Sigma được phát triển như một phương pháp cải tiến chất lượng thông qua việc loại bỏ các lỗi trong quá trình vận hành. Do đó, mục tiêu của nghiên cứu này là tổng quan lý thuyết Six Sigma và ứng dụng nó vào tình huống công ty A chuyên sản xuất nón bảo hiểm ở Việt Nam để giảm tỉ lệ lỗi lõi xốp của nón bảo hiểm. Tiến trình DMAIC (Define - Measure - Analyze - Improve - Control) của Six Sigma được ứng dụng trong dự án cải tiến này. Kết quả cho thấy lõi xốp có lỗi chính là Kết cấu. Từ đó, các nguyên nhân gốc rễ được phân tích và các giải pháp được đề xuất. Sau khi cải tiến, tỉ lệ lỗi Kết cấu giảm từ 1.15% xuống 0.38%, cấp độ Sigma tăng từ 3.77 và 4.17, chi phí chất lượng giảm đáng kể. Các yếu tố ảnh hưởng đến sự thành công của dự án thành công là lãnh đạo, sự tham gia của nhân viên, quản lý dự án và thu thập dữ liệu. Yếu tố rào cản của dự án là kênh giao tiếp giữa các cấp trong công ty.

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