Siagian, Astrid Valentina (2024) Pengendalian Kualitas Produksi Kertas PRIMA 56/44 Menggunakan Peta Kendali Mixed Multivariate Exponentially Weighted Moving Average-Cumulative Sum (MEC) (Studi Kasus PT. Adiprima Suraprinta). Other thesis, Institut Teknologi Sepuluh Nopember.
![[thumbnail of 5002201093-Undergraduate_Thesis.pdf]](http://repository.its.ac.id/style/images/fileicons/text.png) |
Text
5002201093-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (4MB) | Request a copy |
Abstract
Persaingan industri mengalami peningkatan setiap tahunnya, untuk itu diperlukan pemantauan dan pengendalian kualitas produksi untuk setiap produk yang akan diluncurkan. PT. Adiprima Suraprinta merupakan salah satu perusahaan yang ikut bersaing dalam dunia industri dan bergerak dibidang produksi kertas khususnya kertas newsprint. Salah satu jenis kertas newsprint yang diproduksi oleh PT. Adiprima Suraprinta adalah Kertas PRIMA 56/44. Penelitian ini bertujuan untuk mengendalikan kualitas Kertas PRIMA 56/44 dengan menganalisis proses produksi Kertas PRIMA 56/44 menggunakan peta kendali Mixed Multivariate Exponentially Weighted Moving Average-Cumulative Sum (MEC). Peta kendali MEC merupakan gabungan dari peta kendali MEWMA dan MCUSUM. Peta kendali ini terdiri dari peta kendali MEC1 dan peta kendali MEC2. Variabel yang digunakan pada penelitian ini yaitu Basis Weight, Thickness, Moisture, Tensile MD, dan Tensile CD. Hasil penelitian menunjukkan bahwa proses produksi Kertas PRIMA 56/44 menggunakan peta kendali MEC1 dan MEC2 tidak terkendali secara statistik. Peta kendali MEC1 yang diterapkan pada proses produksi Kertas PRIMA 56/44 lebih sensitif dalam memantau pergeseran kecil pada proses daripada peta kendali MEC2 karena peta kendali tersebut menghasilkan lebih banyak pengamatan yang out of control. Berdasarkan analisis yang dilakukan dengan menggunakan pembobot optimal λ = 0,5, variabel Tensile MD berpengaruh paling besar terhadap terjadinya out of control. Berdasarkan analisis kapabilitas multivariat yang telah dilakukan, proses produksi Kertas PRIMA 56/44 belum memiliki akurasi yang baik, namun proses produksi Kertas PRIMA 56/44 telah memiliki presisi yang baik, akan tetapi proses produksi Kertas PRIMA 56/44 masih perlu diperhatikan lebih lanjut agar dapat dinyatakan capable. Hasil penelitian ini diharapkan dapat memberikan manfaat kepada PT. Adiprima Suraprinta dalam melakukan pemantauan serta evaluasi pada proses produksi Kertas PRIMA 56/44.
====================================================================================================================================================================================
The industrial competition is increasing every year, hence the need for monitoring and quality control of production for every product to be launched. PT. Adiprima Suraprinta is one of the companies competing in the industrial world, specializing in the production of paper, particularly newsprint paper. One type of newsprint paper produced by PT. Adiprima Suraprinta is PRIMA 56/44 paper. This research aims to control the quality of PRIMA 56/44 paper by analyzing its production process using the Mixed Multivariate Exponentially Weighted Moving Average-Cumulative Sum (MEC) control chart. The MEC control chart is a combination of MEWMA and MCUSUM control charts, consisting of MEC1 and MEC2 control charts. The variables used in this study are Basis Weight, Thickness, Moisture, Tensile MD, and Tensile CD. The results of the study indicate that the production process of PRIMA 56/44 paper using MEC1 and MEC2 control charts is not statistically controlled. The MEC1 control chart applied to the PRIMA 56/44 paper production process is more sensitive in monitoring small shifts in the process than the MEC2 control chart because it produces more out of control observations. Based on the analysis conducted using the optimal weight λ = 0,5, the Tensile MD variable has the most significant influence on the occurrence of out of control situations. Based on the multivariate capability analysis, the production process of PRIMA 56/44 paper does not yet have good accuracy, but it has good precision. However, the production process of PRIMA 56/44 paper still needs further attention to be declared capable. This research is expected to benefit PT. Adiprima Suraprinta in monitoring and evaluating the production process of PRIMA 56/44 paper.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Pengendalian Kualitas, Kapabilitas Proses Multivariat, Kertas PRIMA 56/44 Peta Kendali MEC1, Peta Kendali MEC2 Quality Control, PRIMA 56/44 Paper, Multivariate Process Capability, MEC1 Control Chart, MEC2 Control Chart |
| Subjects: | Q Science Q Science > QA Mathematics |
| Divisions: | Faculty of Mathematics and Science > Mathematics > 44201-(S1) Undergraduate Thesis |
| Depositing User: | Astrid Valentina Siagian |
| Date Deposited: | 06 Aug 2024 07:52 |
| Last Modified: | 06 Aug 2024 07:52 |
| URI: | http://repository.its.ac.id/id/eprint/112890 |
Actions (login required)
 |
View Item |