Judul: Recommendations for Quality Improvement of Primed Door Product Using Six Sigma Method at PT XYZ
Abstrak: Competition is getting tougher and makes the company have to keep making improvements. One of the company's improvements is a quality improvement, such as reducing the incidence of defective products. Based on the observations made, it was found that various defective products on primed doors at PT XYZ could be caused by deviations in machine performance, raw materials, methods, and labour. The research objectives are identifying the production process that causes defects in the product, calculating the sigma level of the primed door, and providing suggestions for improvements. This research was conducted using the six sigma method of Define, Measure, Analyze, Improve stages. Based on primed door rework data from January to March 2021, it was found that a total defects are 3218 units out of 31881 overall. Transparent, step, and striped are the biggest types of damage to primed doors, with total damage respectively 1901, 672, and 268. Based on the sigma level calculation, PT XYZ is at level 3 with an average of 3.55 from January to March 2021. This shows PT XYZ has a performance above the industry average in Indonesia., Persaingan yang semakin ketat membuat perusahaan harus terus melakukan perbaikan. Salah satu perbaikan yang dapat dilakukan oleh perusahaan adalah perbaikan mutu seperti mengurangi timbulnya produk cacat. Berdasarkan pengamatan yang dilakukan, ditemukan berbagai produk cacat pada pintu primed di PT XYZ. Hal ini dapat disebabkan oleh penyimpangan pada kinerja mesin, bahan baku, metode, serta tenaga kerja. Tujuan penelitian di PT XYZ adalah mengidentifikasi proses produksi yang menyebabkan cacat pada produk, menghitung tingkat sigma pintu primed, dan memberikan saran untuk perbaikan. Penelitian ini dilakukan dengan menggunakan metode six sigma tahapan Define, Measure, Analyze, Improve. Berdasarkan data rework pintu primed dari bulan Januari sampai Maret 2021 ditemukan total cacat sebesar 3218 dari total keseluruhan 31881. Transparan, step dan bergaris merupakan jenis kerusakan terbesar pada pintu primed dengan total kerusakan secara berturut turut adalah 1901, 672 dan 268. Berdasarkan perhitungan tingkat sigma, PT XYZ berada pada tingkat 3 dengan rata-rata 3.55 pada Januari sampai Maret 2021. Hal tersebut menunjukkan PT XYZ memiliki performance diatas rata-rata industri di Indonesia.
Keyword: primed door, quality improvement, six sigma method

Judul: Peningkatan Produktivitas Pada Lini Produksi Joinery Door dengan Mengurangi Limbah Cacat dan Transportasi Menggunakan Value Stream Mapping (VSM)
Abstrak: In a company, many wastes occur, such as defects, overproduction, waiting, non-utilized talents, transportation, inventory, motion, and extra-processing, resulting in not achieving production targets or consumers being dissatisfied with the available products. This waste must be analyzed and minimized to increase the efficiency of production. One method that can be used to analyze waste in a company is VSM, which is a method to outline the overall scheme of the process and make it easier to identify the waste. The type of product analyzed is the joinery door ABS type. From the analysis using VSM, it can be concluded that the most significant waste that occurs in the company is defects and transportation. From the results of the analysis, discussions were held with company workers regarding ideas to minimize waste. The proposed improvement idea is to organize a quality control team on line 5 in the detailing section and change the raw material transportation equipment from line 3 to line 4 from forklifts to conveyors. The solution's final result is to reduce the transportation time by 5 minutes and eliminate the possibility of defective doors in line 5 of the detailing section., Dalam sebuah perusahaan terdapat banyak pemborosan yang terjadi, seperti cacat, kelebihan produksi, menunggu, bakat yang tidak dimanfaatkan, transportasi, penyimpanan, gerakan tidak perlu, dan proses berlebihan, sehingga menyebabkan tidak tercapainya target produksi atau konsumen yang tidak puas dengan produk yang tersedia. Pemborosan tersebut harus di analisa dan diminimalisir untuk meningkatkan efisiensi produksi. Salah satu metode yang dapat digunakan untuk menganalisa pemborosan pada perusahaan adalah VSM, yaitu metode untuk menggambarkan skema keseluruhan proses secara garis besar dan memudahkan untuk mengidentifikasi adanya pemborosan. Jenis produk yang dianalisa adalah pintu joinery door jenis ABS. Dari hasil analisa menggunakan VSM tersebut dapat disimpulkan bahwa pemborosan terbesar yang terjadi di perusahaan adalah pemborosan cacat dan transportasi. Dari hasil analisa tersebut kemudian diadakan diskusi dengan pekerja perusahaan mengenai ide untuk meminimalisir limbah. Ide perbaikan yang diajukan adalah dengan cara mengadakan tim quality control pada line 5 bagian detailing, serta mengganti alat transportasi bahan baku dari line 3 ke line 4 dari forklift menjadi conveyor. Hasil akhir dari solusi yang diberikan adalah mengurangi waktu transportasi sebanyak 5 menit serta mengeliminasi kemungkinan pintu cacat pada line 5 bagian detailing.
Keyword: defect, efficiency, transportation, waste, VSM

Judul: Karakteristik Morfofungsi Skelet Ekstremitas Kaki Soa Layar (Hydrosaurus amboinensis)
Abstrak: Sailfin Lizard is a lizard that has a semi-aquatic life and has a sail fin on its tail. These lizards can be found in habitats close to water such as rivers, lakes, and estuaries of mangrove forests. This study aimed to observe morphofunction characteristic of appendicular skeleton of Sailfin Lizard (Hydrosaurus amboinensis), associated with their function and behavior. Morphofunction characteristic of the appendicular skeleton of Sailfin Lizard was studied by observing and measuring the bones that make up the extremities. The naming of bones and their parts is based on the Nomina Anatomica Veterinaria 2017 and other journal. The clavicle and interclavicle bones are located anterior to the scapulacoracoid which has convex shape. The patella ulnar bone is found at the humeroulnar joint and the radius et ulna bone has a relatively long antebrachial interosseum space. On the hind legs, coxae bone has a relatively broad acetabulum, two lunula bones and patellar mineralization are found at the femorotibiofibular joint, and tibia et fibula bones have a relatively long interosseum cruris space. The palmar part of the ossa carpi is found in the palmar sesamoid bone, while the tarsi bones have a fused astragalus and calcaneus bones to become os astragalocalcaneus. The size of the pedis skeleton is relatively long compare to the manus skeleton and has a different middle phalanx bone. The ekstremity skeletal structure allows the Sailfin Lizard to do movements such as walking, running, climbing, running on water and swimming.
Keyword: Appendicular skeleton, Morphofunction, Sailfin Lizard