The insertion of field rifling profiles into a barrel – such as those used in sporting rifles – is a very demanding task. The complex internal geometry is difficult to achieve using conventional cutting and forming tools and must be manufactured with extreme precision. While forming processes are often used, they require high capital investment and generate additional process costs. Electrochemical machining (ECM) from EMAG offers an alternative: a fast and effective process that delivers high-precision surfaces. In this interview, Daniel Plattner, Technical Sales Manager at EMAG ECM, discusses the possibilities of this innovative production method for rifling.
Precision plays a decisive role in the manufacture of weapons. One technique that contributes significantly to the precision of firearms is rifling – the insertion of helical flutes into the barrel of a weapon. The rifling ensures that the bullet rotates when fired and hits its target with precision. Traditionally, rifling used to be produced by mechanical processes such as hammering. Or button broaching. However, with the further development of technology, electrochemical machining (ECM) is establishing itself as a superior alternative that enables much greater precision.
ECM is an innovative technology for machining the barrels of sporting guns. A special rifling module is used in the PI machine. The result is a highly precise and homogeneous field rifling profile for short and long barrels.
ECM (Electrochemical Machining) is being used for a growing range of industrial applications. To date, deburring is customary, but ECM could replace traditional chip-removal manufacturing processes as a better alternative. In the interview, our two ECM experts Fazli Yilmaz and Franz Gross from EMAG ECM explain what ECM is all about.
Networking @ EMO:
Series of interviews with the experts at the EMAG Group with whom you can exchange views at the EMO
“Smart technologies drive tomorrow’s production!” That is the motto for EMO 2019 in Hanover, Germany. Yet, we are convinced that not only smart technologies are important, but above all, so are smart people—and they must be brought together to talk to one another.
That is why we will not only focus on networked technologies at the EMAG Group’s booth, but also on networking with our visitors.
In order to let you look ahead and find out whom you absolutely should talk to at the EMO. In the coming weeks, we will regularly interview our experts who will also be attending the EMO in Hanover.
When precision counts in electrochemical machining, the tool cathode plays a significant role: Its shape determines the removal of material at the workpiece. Therefore, its design and precise production is a particularly important machining task in the micrometer range. For its development, EMAG ECM therefore has a large development area with a largely digital workflow.
Electro-chemical machining (ECM) is a fascinating production method, because the technology involves virtually no workpiece contact: A direct current, or pulse, is used to polarize the workpiece positively, to create an anode, and the tool negatively, for the cathode. An electrolyte solution flows between the two, and metal ions detach from the workpiece. The components are not exposed to any mechanical or thermal stress during the process.
Weapon barrel manufacturing ranks among the most demanding challenges in long-part machining. Extreme length-to-diameter ratios, tight concentricity tolerances, hard-to-machine materials, and the unique internal geometry with rifling and lands present unique challenges at every process step. This article describes the complete process chain from the sawn raw-part to the barrel ready for installation. Comparing a hammered tube to one machined with ECM highlights the machining and process requirements needed for reliable production. This example doesn’t cover other rifling methods, like button rifling or cut rifling.
The 47th annual SHOT Show proved once again why it is the premier event for the shooting, hunting and outdoor industries. With record-breaking exhibit space, more than 54,000 industry professionals in attendance, and groundbreaking innovations on display, this year’s event set a new benchmark for industry engagement and collaboration. For EMAG, the SHOT Show was the perfect opportunity to introduce our latest advancements in electrochemical machining (ECM) for rifle barrel manufacturing, particularly our cost-effective 2-spindle ECM rifling machine.
The e-bike market continues to boom – even if manufacturers have recently been unable to match the record figures from the pandemic. Nevertheless, around 1.6 million e-bikes were produced in Germany in 2023. In light of these large figures, it is particularly interesting to take a look at the central component: how exactly does the e-bike motor work, what characterizes its production and what changes are in store for the future?
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