DeHoff 3060 Bores Railcar Hopper Bins
The DeHoff 3060, available from Kays Engineering, is a single-axis boring machine designed for applications in the railroad industry.
The DeHoff 3060, available from Kays Engineering, is a single-axis boring machine designed for applications in the railroad industry, particularly boring the bottom housings of rail car hopper bins. The machine has a single spindle with maximum boring capacity of 3" (76.2 mm) and a maximum boring depth of 60" (1,524 mm). To meet rigorous material removal requirements, the cutting tool is powered by a 40-hp spindle motor with a four-speed gearbox. The Beckhoff CNC is programmed using G code.
The machine features steel boxways and hand-scraped mating components rather than linear guideways and milled surfaces. This improves vibration damping, tool life and surface finish, the company claims.
One of the most common methods of tapping in use today on CNC machines is 'rigid tapping' or 'synchronous feed tapping.' A rigid tapping cycle synchronizes the machine spindle rotation and feed to match a specific thread pitch. Since the feed into the hole is synchronized, in theory a solid holder without any tension-compression can be used.
Applying ceramic inserts is not a simple substitution of one cutting tool material for another. There are significant process considerations that shops should examine carefully in order to realize performance and tool life expectations from ceramic inserts. Here's a look at some of the ways they are used.
With macros and canned cycles resident in the CNC on most contemporary turning centers, single point turning of OD threads can seem like almost a default process decision. However, for numerous applications, OD thread rolling has inherent advantages as an alternative to cutting threads.