The Hi-MOLD6500, a high-speed machining center produced by Hyundai Wia.

Hyundai Wia has been establishing itself as a global integrated machinery maker. The company boasts of a global competitive edge in many areas ranging from its mainstay machine tools sector to the automotive parts, heavy industry, and defense industries. 

Hyundai Wia, which became a subsidiary of the Hyundai Motor Group in 2001, has risen to 38th among global automotive parts makers in 2012. The company, which won the Korea Management Grand Prize in 2013, has grown into a global company, also walking away with the $3 billion Export Tower the same year, Yoon Jun-mo, president & CEO of Hyundai Wia, said.

The company has retained the No. 1 position in the Korean machine tools market since 2000. Hyundai Wia has maintained growth with its mainstay products such as large- and small-sized computer numerical control lathes and vertical and horizontal machining centers, but the company has been developing a wide range of machining centers and producing IT products to make the most of global technology trends and seize a bigger share of the global market. 

As part of its strategies to make inroads into the global market, Hyundai Wia established a machine tools plant in the Zhangjiagang River area in China in 2008 and a machine tools sales operation in Shanghai. The company has also built up global sales networks, including operations in the Americas and Europe. A global call center integrating marketing activities and services in major areas in Korea, China, European countries, and the Americas is in service. After-sales service requests and queries about products are shared simultaneously with Hyundai Wia headquarters in Korea to take follow-up measures.

Hwacheon showcased the latest quality machines, including vertical-type high-speed machining center “F550M,” the high-speed machining center “Hi-MOLD6500,” and the CNN general use lathe “L160/230 Series” at the 16th Seoul International Machine Tool Show (SIMTOS) 2014, which took place at KINTEX in Goyang, north of Seoul, from April 9-13.

Hyundai Wia churns out a vertical machining center series for convenient work, minimum production time, and optimum productivity; a CNC lathe series offering the world’s fastest speed and top-rated productivity; a cylindrical grinder series boasting innovative design and hydrodynamic bearing features; and rotary table-type boring machines of high-intensity for comfortable work. 

The F550M, a machine for mold machining, adopts ultra-precision class angular ball bearings for fast acceleration and deceleration of the main spindle. It boasts of a 15,000 RPM built-in spindle. The spindle head is designed to minimize the heat displacement of the main spindle. With the use of a hydraulic tool lock system the machining stability is increased. Rapid high-speed axis movement is achieved by the use of roller guide ways. The machine reduces non-cutting time and decreases machining time for greater productivity.

The Hi-MOLD6500 is a high-speed double-column type machining center particularly suited for precision machining due to the bridge design’s high rigidity and the generation of low heat. The head of the main axis moves up and down and left and right on the cross beam. The table in turn moves front to rear.

In order to eliminate thermal growth during machining, Hyundai WIA has adopted an all-new Thermal Distortion Stabilizing System. In addition, all axes are driven by high precision double-nut ballscrews, which feature internal cooling as an option. The double pretension design provides outstanding positioning and repeatability with virtually no thermal growth. All ballscrews are connected directly to the servo drive motors without gears or belts, to eliminate backlash. 

Rapid high-speed axis movement is achieved by the use of linear motion guide ways. This reduces non-cutting time and decreases machining time for greater productivity. Rapid traverse: X/Y/Z axes, 40/40/40 m/min; Cutting speed is 24 m/min.

The built-in main spindle is designed for high speed and high precision machining at 15,000 rpm (20,000 rpm optional) with ultra-precision class angular bearings providing high-speed accel/decel for smooth machining at high rpm’s.  The built-in spindle design delivers little noise and vibration even at the highest rotational speeds, guaranteeing extremely stable machining by minimizing thermal transmission to the main spindle. The spindle coolant guarantees stable machining and increases tool life by decreasing heat generation caused by high-speed machining, particularly when executing deep-hole machining. The spindle taper is Big Plus 40, spindle speed is 15,000 rpm (optional 20,000 rpm), and spindle output is 30 HP (25 HP continuous).