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Indah Purnama Putri
Politeknik Kampar, Bangkinang, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Social Sciences

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Pengaruh Kedalaman Potong Menggunakan Tools Insert Karbida CNMG 120412 Sumitomo Radius 1,2 mm Terhadap Hasil Kekasaran Permukaan Baja Karbon S45C Indah Purnama Putri; Adi Febrianton; Purnama Irwan; Irdansyah Irdansyah; Yudi Dwianda
Trends in Applied Sciences, Social Science, and Education Vol. 3 No. 2 (2025): Desember
Publisher : PT Hakhara Akademia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71383/tase.v3i2.100

Abstract

Surface roughness is a critical parameter that influences product quality in machining operations. According to ISO 1320–1987, surface roughness is characterized as the arithmetic mean deviation of surface irregularities from the nominal profile. In mechanical component manufacturing, controlling surface roughness is essential due to its relationship with friction, lubrication behavior, and wear performance. Tool geometry and cutting parameters are known to significantly affect surface texture quality. This study investigates the influence of depth of cut using a Sumitomo insert with a 1.2 mm nose radius on the surface roughness of S45C steel machined by CNC turning. An experimental procedure was adopted, using depth-of-cut variations of 0.3 mm up to 1.5 mm. The feed rate was set at 0.1 mm/rev and the spindle speed followed the constant surface speed mode (G96). Surface roughness values were measured with a stylus profilometer. The experimental results indicate that all tested depth-of-cut settings fall within roughness grade N7, except for the 0.3 mm depth of cut, which achieved grade N6.
Sistem Pengairan Otomatis Tanaman Holtikultura Menggunakan Sensor Kelembaban Tanah Purnama Irwan; Indah Purnama Putri; Adi Febrianton
Trends in Applied Sciences, Social Science, and Education Vol. 4 No. 1 (2026)
Publisher : PT Hakhara Akademia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71383/tase.v4i1.122

Abstract

The irrigation process for horticultural crops in agricultural fields requires a considerable amount of time and labor. During the dry season, farmers typically need to irrigate their fields twice a day to ensure optimal plant growth and maintain crop productivity. This activity is performed routinely daily, which can lead to fatigue and consume significant amounts of time and energy. Therefore, to improve the efficiency of irrigation practices, an automated irrigation system was designed. With this system, the time and labor that farmers would otherwise devote to manual irrigation can be redirected to other agricultural activities. The proposed system utilizes soil moisture sensors installed in the agricultural field. These sensors are employed to monitor soil moisture levels according to the specific water requirements of the crops. When the sensors detect that the soil moisture level has fallen below the desired threshold, a signal is transmitted to the controller, which subsequently activates a water valve. As a result, water is supplied to the field to increase soil moisture. Once the soil moisture reaches the predefined level, the valve is automatically closed, thereby stopping the irrigation process. This system is expected to assist farmers in managing their agricultural land more effectively by providing a solution that is easier to operate, more efficient, cost-effective, and measurable.
Co-Authors Adi Febrianton Irdansyah Irdansyah Purnama Irwan Yudi Dwianda