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  1. Home
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  3. Faster by the minute

Faster by the minute

19 November, 2016
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By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2016-11-19 10:30:00

They say small changes can make a big difference. And that is definitely the case for oil and gas player Halliburton at its Singapore plant. The energy company has made significant time and cost savings in its manufacture of vital components, thanks to a tapping solution from Sandvik Coromant.

Halliburton’s Singapore operation makes hundreds of different components each year for the oil and gas industry. Many of these parts are made using inconel 718, a very expensive but high-strength, corrosion-resistant nickel chromium material that can be used at very high and very low temperatures. Many of Halliburton’s components need to be threaded so they can be connected to other parts.

The challenge that Halliburton faced was very high cycle times for prodution threads with thread milling process, slowing down the production times. The company had looked previously at ways to speed up the threading process at its UK plant but with disappointing results. So it took the opportunity of a slowdown in the oil and gas industry to revisit this process. It was a challenge taken up eagerly by Sandvik Coromant, which has a close working relationship with Halliburton in Singapore. Part of Sandvik Coromant’s Singapore operations is its Productivity Center where it carries out training and provides machining strategies, customer trials and demonstrations.

It was at this center that Sandvik Coromant carried out comprehensive tests of its threading solutions (tapping) on the inconel 718 material. By taking on this rigorous testing within the Productivity Center, it meant Halliburton didn’t need to disrupt its manufacturing cycle. Sandvik Coromant soon went back to Halliburton with its proven CoroTap® 200 -SD solution, which was then integrated into the manufacturing process with dramatic results.

One of the biggest improvements was for the thread milling process of Halliburton’s release housing components. Before the improvements, the process took 116 minutes to complete, but this was slashed to just six minutes once the CoroTap 200 -SD was introduced. For Halliburton’s manifolds, the thread milling process previously took 26 minutes per component before Sandvik Coromant took up the challenge. The cutting time was more than halved to 12 minutes as a result of the CoroTap 200 -SD, saving time and thousands of dollars for Halliburton.

“I was surprised and very excited by the time savings,” says Singapore-based Foo Siong Fatt, senior technical professional at Halliburton. “Because our UK trials were not successful we wanted lots and lots of testing, which Sandvik Coromant was happy to do off-site. Doing this type of testing in-house carries certain risks.”

While the results speak for themselves, Foo was also impressed with the implementation of the new tools. “We have worked with Sandvik Coromant for many, many years and so they were the first choice for us. But I was still surprised by how the implementation was so smooth. Change is not always easy in manufacturing and gets a lot of resistance, but this was very spontaneous.”

The whole process, from testing through to implementation, took about three months (February through April 2016), a time when oil prices hit record lows. This slump in prices sparked a slowdown in the energy industry, forcing companies to scrutinize their costs and processes. For Halliburton, the introduction of Sandvik Coromant’s CoroTap 200 -SD came at just the right time.

Technical Insight
Halliburton initially introduced the CoroTap 200 -SD solution to components, which require thread size of 3/8-16 UNC (Unified National Coarse) holes, then to thread size of ½-13 UNC holes. Because of the dramatic time reductions, it is now looking at other components it can use CoroTap 200 -SD on. Inconel 718 is a difficult and expensive material to work with, but technical specialists at Sandvik Coromant were confident that they could solve Halliburton’s challenge. Sandvik Coromant has a Productivity Improvement Program (PIP) where technical specialists visit a customer and analyze his operations.

Sandvik Coromant has a Productivity Improvement Program (PIP) where technical specialists visit a customer and analyze his operations.
The technical specialist can then suggest improvements to the production process, spotting bottlenecks and recommending changes. "Since we visit so many customers and share their experiences, it generates a great deal of knowledge that combined with our products we can use to improve their productivity,” says Manoj Kulkarni, product manager – Solid Round Tools at Sandvik Coromant. For Halliburton, Sandvik Coromant also recommended a CoroChuck® 970 holder to ensure excellent thread quality and reliability, alongside the CoroTap 200 -SD. A tapping paste was also used by Halliburton to improve lubrication. All of Halliburton’s machines at its Singapore facility are tool tooled by Sandvik Coromant.

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