TPT July 2014

Finishing and end f inishing

Double end machining centre from Haven Manufacturing

staging, workstation and chip blowout. Precision ground linear support and servo motion control allows for minimal setup time and a statistically repeatable performance. The ability of this machine to complete all machining operations in one step ensures that the part will meet all geometric dimensional tolerances. This was the third machine of this type that Haven has built. The company says that it understands the stringent requirements the automotive industry demands, and has the knowledge, flexibility and design experience to produce the desired solution. Haven Manufacturing Corp – USA Fax: +1 912 264 9001

customer required a machine that performed the traditional chamfer and end face, but also a counter bore on one end of the shock absorber tube and a diameter reduction on the opposite end, all done within the same workstation. The solution required a combination of servo-controlled feeds and speeds to maximise the production cycle and to minimise the size and amount of offal. Removing this much material, chips can become a major issue, so chip size control was critical. Incorporating chip-breaking technology through servo programming gave the machine this capability. For part handling, an overhead pick- and-place system was used to transfer the tubes into and out of three positions:

A NORTH American automotive shock absorber manufacturer required a machine to perform chamfering, end face, counter bore and OD reduction simultaneously, and Haven Manufacturing came up with a solution to this rare problem. The era of the traditional double end chamfering machines is almost non-existent, according to Haven Manufacturing. Double end chamfer has evolved into increasingly sophisticated machines that have to meet very stringent OEM specifications, whether for automotive, aerospace or furniture. Haven states that its ability to adapt to changing customer requirements has sustained its reputation as a flexible and creative design and manufacturing company. For this application, the

Email: sales@havencut.com Website: www.havencut.com

End preps for offshore piping systems

Millhog Dictator bevelling end prep tool develops 4,100ftlb of torque at the cutter blade and pulls a continuous thick chip without cutting oils. The blades are TiN coated and dissipate heat away from the pipe’s surface, and produce a clean, consistent thick chip without cutting oils that eliminates the need for hand grinding or using complex clamshell tools. The simple-to-operate Millhog Dictator features extra wide ID clamps with steel contact points that quickly expand and rigidly mount the machine to the pipe. These durable clamps are quickly changed, and only eight sets are required for the complete range. The Esco Tool Company was founded in 1954 and developed the first portable end prep tool for the Triton nuclear submarine programme.

AN upgraded welding end prep tool for machining high temperature, high pressure pipe used on severe-duty

offshore piping systems and shale pumping stations is being introduced by Esco Tool.

The Millhog ® Dictator bevelling machine is a portable ID clamping pipe milling machine designed for dry-cutting high-temperature, high- pressure pipe from 4.5" ID to 18" OD. Suited to stainless steel and Super Duplex piping systems, the tool features a new 3 HP air motor designed for high performance in environments that have dirty air and high moisture content. The air motor is easy to clean and maintain by just removing one screw to access the rotor and vane assembly, instead of removing the motor from the tool. The

Esco Tool – USA Fax: +1 508 429 2811

Email: alex@escotool.com Website: www.escotool.com

Esco’s Millhog Dictator bevelling machine

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J uly 2014