Kohesi: Jurnal Sains dan Teknologi

Articles

Vol. 10 No. 8 (2026): Kohesi: Jurnal Sains dan Teknologi, ISSN 3025-1311

ANALISIS GAYA POTONG, WAKTU PRODUKSI EFEKTIF, DAN EFISIENSI PROSES BLANKING DAN PIERCING PADA BRACKET SIDE STAND BERBAHAN BAJA SS400

Submitted
January 15, 2026
Published
2026-01-15

Abstract

Proses blanking dan piercing merupakan tahapan penting dalam produksi komponen otomotif berbahan plat karena berpengaruh langsung terhadap kualitas produk dan efisiensi produksi. Penelitian ini bertujuan untuk menganalisis gaya potong, waktu produksi efektif, dan efisiensi proses pada pembuatan komponen bracket side stand K41 berbahan baja SS400 menggunakan mesin press. Penelitian dilakukan dengan pendekatan kuantitatif deskriptif melalui studi kasus industri berdasarkan data aktual proses produksi tanpa melakukan perancangan atau modifikasi sistem. Proses produksi yang dianalisis meliputi proses blanking menggunakan mesin press 100 ton dan proses piercing menggunakan mesin press 45 ton. Hasil perhitungan menunjukkan bahwa gaya potong pada proses blanking sebesar 222,2 kN, sedangkan pada proses piercing sebesar 74,41 kN. Nilai gaya potong tersebut masih berada di bawah kapasitas mesin press yang digunakan sehingga proses produksi dapat berlangsung dengan aman. Waktu produksi efektif tercatat sebesar 4,71 detik per siklus untuk proses blanking dan 5,75 detik per siklus untuk proses piercing. Perbedaan waktu produksi efektif dipengaruhi oleh besarnya waktu tambahan seperti handling dan ejecting. Hasil evaluasi efisiensi produksi menunjukkan bahwa proses blanking memiliki efisiensi sebesar 81,8%, sedangkan proses piercing sebesar 79,8%. Nilai efisiensi yang belum mencapai 100% menunjukkan adanya potensi peningkatan kinerja proses, terutama melalui pengurangan waktu tambahan selama produksi. Hasil penelitian ini diharapkan dapat menjadi acuan dalam evaluasi dan peningkatan efisiensi proses produksi komponen otomotif berbasis mesin press.

The blanking and piercing processes are crucial stages in the production of plate-based automotive components because they directly impact product quality and production efficiency. This study aims to analyze cutting forces, effective production time, and process efficiency in the manufacture of K41 side stand bracket components from SS400 steel using a press. The study used a descriptive quantitative approach through an industrial case study based on actual production process data without any system design or modification. The production processes analyzed included blanking using a 100-ton press and piercing using a 45-ton press. The calculation results showed that the cutting force in the blanking process was 222.2 kN, while in the piercing process it was 74.41 kN. These cutting force values ​​were still below the capacity of the presses used, allowing the production process to proceed safely. Effective production times were recorded at 4.71 seconds per cycle for the blanking process and 5.75 seconds per cycle for the piercing process. The difference in effective production times was influenced by additional time such as handling and ejection. The results of the production efficiency evaluation showed that the blanking process had an efficiency of 81.8%, while the piercing process had an efficiency of 79.8%. The efficiency value, which has not yet reached 100%, indicates potential for improving process performance, particularly by reducing additional production time. The results of this study are expected to serve as a reference for evaluating and improving the efficiency of press-based automotive component production processes.

References

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