A Message from Hartwig

To You, Our Valued Customer,

As 2017 comes to a close, I wanted to take this opportunity to express how truly grateful our team is for your business. Also, at the end of each year, it is a perfect time to reflect on what all has been accomplished, and as a new year begins, look ahead at what we hope to accomplish. At the center of it all is an effort to strengthen our focus on meaningful and lasting impressions with our customers.

This year, various efforts were put forth such as developing our customer care team, investing in new software and technologies to improve our internal processes, or growing the size of our Technical Services team to increase our base strength, we have positioned ourselves to continue providing you with unparalleled manufacturing solutions and support.

In addition to the above, I’m excited to introduce our new Hartwig Vision Statement:

To be the first choice for manufacturing solutions and support through customer-driven innovation, best-in-class equipment, product and industry expertise, superior customer care, and unsurpassed value. Hartwig strives to be the name people know, trust, and enjoy partnering with.

This vision statement will guide us to continually raise the bar in all aspects of our business in the years ahead.

There is no time more perfectly suited for expressing our gratitude than this holiday season. Thank you for your trust in us and we wish you a joyful holiday season and a prosperous New Year!

Geoff Hartwig, President
Hartwig Inc.


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Okuma HMCs with Rotary Tables Speed Accurus Aerospace’s Hard Metals Production

As parts requiring five-axis machining have risen in demand, especially in the aerospace and medical industries, manufacturers are faced with the challenge of justifying a dedicated five-axis machine for a limited number of parts or parts series.

Shops can now achieve five-axis capabilities with high precision without incurring the cost-prohibitive financial commitment of a dedicated machine.

Accurus Aerospace has been machining complex aerospace parts at its Tulsa, Oklahoma facility since 1974. The company has worked on major programs for customers such as Boeing, Spirit AeroSystems, and the Triumph Group. When looking for a 5-axis solution, they selected Okuma HMCs with Tsudakoma rotary tables from Koma Precision Inc.

The company specializes in hard metal, 5-axis machining in titanium and steel. The sheer power of high-torque spindles on their Okuma MA-600HII and MB-8000H machines and the addition of a 5th axis via a double-sided rotary table set the stage for success. Accurus is able to cut 4-axis parts on one side and 5-axis parts on the other side.

In explaining the choice, Senior Engineering Specialist Don Moody said adding a rotary table costs much less than a dedicated 5-axis machine. “It also allows us to get to the center of the part easier.”

The spindle utilization of an HMC can often be more than twice as much as that of a vertical machining center. Unlike a full 5-axis, trunnion-style machine, an HMC plus a rotary table allows for setting up parts on the pallet outside the machining area while parts loaded on a second pallet are being machined. This drastically reduces downtime caused by stopping the machine to set up the fixture.

“Having two pallets on the HMC increases our efficiency and time management,” Moody said. “The operator is more flexible as to when he can load/unload the part. Plus, the machine is not waiting for the load/unload.”

“We have applied this same concept on the diff­erent size Okuma MA machines in our facility. The Okuma design is so powerful that we are able to cut and surface the part in one pass with a custom, slotted cutter,” stated Larry Johnson, VP of Operations.

To maintain the automatic pallet changing capabilities of the HMC, Koma installed a cable management system on-site. It allows the rotary table to remain connected throughout the pallet change while keeping all the cabling out of the way of fixtures and metal chips. Furthermore, if there are hydraulics or air-sensing lines involved, this system can monitor and actuate automatic fixturing.

When machining high-quality aerospace parts, high rigidity and positioning repeatability are key. In this case, Tsudakoma’s hydraulic dual-disc clamping system was the ideal choice. It maintains the fixture and part positioning while the machining center is taking its cuts. The machine is only as accurate as the rotary table, so positioning repeatability throughout the entire production run is critical to making good parts.

Johnson confirmed the benefits of a rotary table setup. “We have many Okuma machines with Tsudakoma rotary tables. We run them day in and day out, 24/7, and they all provide, highly-accurate, steady machining.”

This modular approach enables manufacturers to generate high-precision five-axis parts without investing in a dedicated five-axis machining center. Despite the seeming complexity of the system, the entire five-axis modification is said to be easily removable from the machine table and stored for later use.

Accurus Aerospace
12716 E Pine Street
Tulsa, OK 74116

Phone: (866) 299-ZTM1

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We Are Listening…

Over the past three months, we have had real conversations with over 100 of Hartwig’s customers. Hearing the feedback from you, our valued customers, learning about our organization from your eyes has been an incredible gift.

For over 57 years, Hartwig remains committed to learning from your feedback and continues to unceasingly pursue a reputation for delivering best in class customer service with positive impressions.

An area that will always be front and center for Hartwig’s Technical Services team is response time.  Through an investment in new service scheduling software, Hartwig will be able to better manage our case distribution amongst our team more effectively, track parts required for cases more efficiently, and improve the overall scheduling experience for you – the customer.

While implementing software advancements is important to help us become more proficient, our organization’s sales growth also makes staffing a regular conversation to ensure we are prepared to serve our customers every day. In order to improve service lead time, Hartwig continues to concentrate on increasing the size of our technical services team across our entire territory. This year alone we have hired almost 20 new technical services engineers, including both service and application engineers.

Increasing the size of our technical services team while also improving our internal processes with the assistance of new software, Hartwig continues to live our mission of helping people in manufacturing control their destiny every day.

Thank you for your valued feedback. If you have additional improvement suggestions for us, you can email me (heather.johnson@hartwiginc.com) or call anytime at (314) 684-4120.

We are still listening…

Heather Johnson, Project Coordinator

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