A 155mm howitzer tube moves to a rotary forge from an arsenal furnace where it was heated to nearly 2,000 degrees. After an approximate 15 minutes of forging, the tube will have the near-finished shape of a howitzer tube.
Key Takeaways

  • Production Efficiency: Novel manufacturing process reduced cannon production time by up to 50%, streamlining throughput. 
  • Cost Savings: Achieved 30% reduction in tooling costs through process innovation and facility optimization. 
  • Technology Maturation: Advanced from Manufacturing Readiness Level (MRL) 4 to MRL 7, enabling transition to Arsenal. 
  • Warfighter Advantage: Supports next-gen cannon systems with adaptable, high-precision manufacturing capabilities. 
  • Ecosystem Collaboration: Success driven by coordinated efforts across Army ManTech, Arsenal, and industry partners. 
  • Strategic Impact: Demonstrates scalable, mission-aligned manufacturing innovation for Army modernization. 

Technology Spotlight: Advanced Manufacturing for Large-Caliber Cannons

Extended-range artillery is a cornerstone of the Army’s overmatch strategy, but manufacturing the barrels for these powerful systems has long posed significant challenges. Traditionally, large-caliber cannon barrels are rifled using broach-cutting techniques. However, the use of high-strength materials and increasingly complex rifling profiles have strained these legacy methods. High tooling loads require frequent resharpening and specialized coatings, driving up costs and limiting throughput. 

To overcome these limitations, the Army ManTech program led a multi-partner initiative to develop a novel manufacturing process for large-caliber cannons. With a $6.1 million investment, the team advanced the technology from Manufacturing Readiness Level (MRL) 4 to MRL 7, culminating in a prototype facility that successfully produced multiple cannon models. This achievement enabled the technology’s transition to Arsenal, positioning it for real-world application and scale. 

Innovation in Action

The prototype facility integrates advanced manufacturing techniques that streamline rifling and enable new design features. By reducing tooling complexity and optimizing process flow, the team achieved: 

  • Up to 50% reduction in production time for extended-range cannons 
  • 30% decrease in tooling costs 
  • Improved quality and reduced scrap rates 
  • Support for advanced features such as boring and modular design integration 

The new process eliminates many of the inefficiencies of broach-cutting, offering a flexible platform that can adapt to future cannon designs. It also supports the use of high-strength materials without compromising precision or durability. 

A 155mm howitzer tube is moved from the arsenal's rotary forge where it was heated to nearly 2,000 degrees and pounded into the near shape of a cannon tube.
This 155mm howitzer tube had just been sent through the arsenal’s rotary forge where it was heated to nearly 2,000 degrees and pounded into the near shape of a cannon tube.
Strategic Impact

This breakthrough directly supports the Army’s long-range precision fires modernization strategy. By enabling faster, more cost-effective production of extended-range cannons, the new process enhances readiness and responsiveness across the force. It also strengthens the organic industrial base by introducing a manufacturing platform that is resilient, adaptable, and aligned with future system needs. 

The successful transition to Arsenal marks a critical milestone, ensuring the technology is embedded within Army production infrastructure. Moreover, the initiative sets a precedent for how Army ManTech investments can drive enduring transformation across the manufacturing ecosystem. 

A 155mm howitzer tube and a 120mm Abrams Tank tube await their next machining operation
A 155mm howitzer tube, left, and a 120mm Abrams Tank tube await their next machining operation at the Watervliet Arsenal.
Collaboration and Leadership

This effort was led by Army ManTech in partnership with the U.S. Army Combat Capabilities Development Command (DEVCOM) Armaments Center, General Electric Research and Development, Faraday Technology Inc., and Corrdesa Inc. The collaboration brought together deep expertise in materials science, electrochemical processing, and advanced manufacturing to deliver a solution that meets the Army’s evolving operational needs. 

Army FUZE is proud to spotlight this achievement as a model of how coordinated innovation, driven by strategic investment and cross-sector collaboration, can deliver real-world impact for the warfighter.

A 155mm howitzer tube moves to a rotary forge from an arsenal furnace where it was heated to nearly 2,000 degrees. After an approximate 15 minutes of forging, the tube will have the near-finished shape of a howitzer tube.

Revolutionizing Cannon Manufacturing with Army ManTech

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