WDO drill eliminates short tool life and frequent breakage headaches
Vinicius Stychnicki | OSG Sulamericana
Efficiency is a key element to success in the world of manufacturing. Speed alone, however, often isn’t sufficient especially in the machining of delicate and precision parts. In the manufacturing of sealing components, where safety is a major factor, reliability and quality cannot be compromised.
Founded in 1884, EagleBurgmann is a joint venture of the German Freudenberg Group and the Japanese EKK group and is among the internationally leading providers of industrial sealing technology. The company produces, sells and provides technical support in mechanical seals, magnetic couplings, accessories, expansion joints, gaskets and static joints, according to the needs of each client. EagleBurgmann’s products are used in the oil and gas, refinery, chemical, energy, food processing, paper, water, marine, aerospace and mining industries. It has a workforce of approximately 6,000 employees worldwide and locations in 77 countries. This case study reports from EagleBurgmann’s Campinas, Brazil location, which was founded in 1978 and is a subsidiary of the EagleBurgmann Group.
During a routine customer visit, EagleBurgmann’s staff was involved with a workpiece made of super duplex stainless steel with a 410 HB hardness. The part required drilling six holes per workpiece at a hole depth of 58 mm with soluble coolant on a Mazak vertical machining center. The drill used at the time was breaking inside the workpiece frequently and had poor tool life. Troubled by the unsatisfactory results, these concerns were expressed to OSG’s sales and engineering team. After a careful evaluation of the application, OSG recommended its WDO-10D coolant-through carbide drill (6 mm diameter) to EagleBurgmann.
The WDO series is OSG’s premium line of carbide coolant-fed high performance drills designed to machine a variety of steels up to 30 x diameter without pecking. It features a unique point design to increase sharpness and decrease vibration, permitting stable low-torque drilling. With the addition of OSG’s proprietary coating, tool life can be further prolonged with greater wear resistance.
After making the switch to the WDO-10D drill, EagleBurgmann was able to accomplish a number of cost savings. Tool life was increased by 150 percent; total tooling cost was reduced by 47 percent; the average cost per workpiece had dropped from R$60,47 to R$10,08. Moreover, the WDO drill had improved hole quality, while adding the extra benefit of being able to stably perform at greater drilling speeds. The headaches caused by broken tools within the workpiece have been eliminated, leaving only faster setup time and cost efficiencies.
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