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Un altro aspetto importante è la qualità del servizio offerto. Le macchine moderne per il lavaggio auto sono dotate di tecnologie avanzate, come sistemi di lavaggio a lunga durata, spazzole morbide, e detergenti ecologici che garantiscono una pulizia profonda senza danneggiare la vernice del veicolo. Questo è particolarmente attrattivo per i clienti che desiderano mantenere i loro veicoli in condizioni ottimali.
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Unfortunately, we studied that all of the above methods are employed after machining or forming, and they require a long process chain and costly production types of equipment [21–24]. Therefore, we proposed a titanium alloy implant preparation process that integrated with cutting and surface modification. The oxygen-rich atmosphere increases the partial pressure of oxygen in the oxidizing environment, and the heat generated during the cutting process increases the temperature and the rate of the oxidation. It uses the cutting heat and oxygen-rich atmosphere generated during the cutting process to form the oxide film (TiO2) to improve the corrosion resistance of the titanium alloy. The experimental equipment is shown in Figure 2. Since the cutting temperature is the most important factor in the oxide film formation process, this paper carried out researches based on theoretical analysis and experimental investigation to acquire an ideal temperature range for the cutting process to achieve the oxide layer.