outlook
the CNC and provides the ability to increase feeds faster than programmed when conditions permit—thus increasing out- put. Material removal is improved and cycle time is minimized by automatically optimizing the cutting feed rate based on the actual spindle load.
Automate Rethreading or Thread Repair Threading in the oil & gas industry is common, and all CNCs have some sort of threading cycles. They are not, however, all equal in functionality or have the ability to signifi - cantly increase productivity. The most innovative versions are available not just for threading but also rethreading or thread repair. Arbitrary speed threading automates the rethreading process that used to be a highly skilled manual process. The increased productivity gained from this option is ideal for the oil & gas industry where threading large diameter or long length workpieces and pipe rethreading or repair is common. Arbitrary speed threading allows the operator to adjust the spindle speed during a threading cycle to eliminate vibration and chatter. Generally, the spindle speed override is inhib- ited during threading. This is to prevent damaging the part, as a change in thread lead would occur. The arbitrary speed threading function ensures that the cutting tool remains co- ordinated with the spindle speed at all times during threading to produce the programmed lead. Arbitrary speed threading is also an invaluable feature for
While rethreading was once a highly skilled manual process, arbitrary speed threading has now automated the procedure.
productivity is increased as cycle times are reduced by up to 40% as every part is automatically optimized in real-time, including the fi rst. Adaptive control compensates for material and process variations including material hardness, tool wear, depth of cut and width of cut. Additionally, feed rate control is 100 times fi ner, which increases the responsiveness and accuracy of the adaptive control. Tool life is also extended as adaptive control keeps roughing tools fully loaded, putting the heat into the chips rather than the part. As a result, there are fewer minor stoppages, which further increases produc- tivity and reduces labor costs. Look for an adaptive control solution that is integrated into
thread repair as it also provides the functionality to pick up and repair an existing thread—making it fast to set up, easy to use and quick to reproduce original threads. The process of repairing threads can be simplifi ed further for operators by using conversational programming. Without any knowledge of G-code, the operator uses straightforward graphical screens to answer simple questions to generate a suitable thread repair program. Review your machine specifi cations with your MTB or distributor to determine your machine capabilities.
CNC Data Management Manufacturers today are looking for ways to gather and manage data from their CNCs. Whether the need is for up- load/download of programs, automatic backup or full-blown OEE, there are many data management systems to consider. Look for systems that meet your shop requirements and are easily integrated into your specifi c CNCs. Traditionally many end users have not actively backed up critical data on their CNC machines. Those who have gener- ally used a manual method where someone went around from machine to machine backing them up by archaic RS232 communication to a PC on the shop fl oor. Others output the
36 — Energy Manufacturing 2015
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