Mold Making Evolved: How Technology, Automation and Smarter Machining Are Changing the Toolroom

Mold making has always been an industry built on precision, experience and craftsmanship. But today, the way molds are designed, programmed, machined and finished is changing faster than ever.

On this episode of The Manufacturing Alliance Podcast, Tony Demakis sits down with Ryan Weekes of CGS North America to talk about the evolution of mold making and the technology that is helping manufacturers become more accurate, consistent and productive.

From CAD/CAM standardization and high-accuracy CNC machining to automation, 5-axis machining and artificial intelligence, the modern mold shop is becoming increasingly connected. But one thing becomes clear throughout the conversation: technology isn't replacing the knowledge of skilled mold makers. It is helping capture that knowledge, standardize it and multiply what manufacturers are capable of doing.

Mold Making Is Changing

For decades, mold making relied heavily on the individual experience of the people performing the work.

Experienced programmers, machinists, mold makers, EDM specialists and polishers developed their own techniques for getting a mold across the finish line. That expertise remains incredibly valuable, but today's manufacturers face a different challenge.

There simply aren't enough experienced people entering the industry to replace all the knowledge that is leaving it.

At the same time, customers expect:

• Shorter lead times
• Higher accuracy
• Better surface finishes
• Competitive pricing
• Greater consistency
• Faster turnaround
• Fewer mistakes

That means manufacturers have to find ways to produce more with the people and equipment they already have.

Technology is becoming a major part of that solution.

Standardizing CAD/CAM Processes

One of the biggest opportunities discussed during the episode is standardization.

Programming shouldn't require starting from scratch every time a new job hits the shop floor. By developing CAD/CAM templates, standardized machining strategies and repeatable programming processes, manufacturers can begin capturing the knowledge of their best people and applying it across more jobs.

Instead of asking: "How does our best programmer do this?"

The better question becomes: "How do we build that knowledge into our process?"

That shift is incredibly important.

Standardization makes it easier to train new employees, improve consistency between programmers and reduce the amount of tribal knowledge trapped inside individual employees' heads. It also creates the foundation necessary for greater automation.

Better Machining Can Reduce Secondary Operations

A mold doesn't stop costing money when it comes off the machining center. Every additional operation adds time.

EDM adds time. Handwork adds time. Spotting adds time. Polishing adds time. Reworking an inaccurate surface adds even more time.

That is why machining strategy and surface quality matter far beyond the machining department.

Today's advanced CAD/CAM systems, cutting tools, CNC machines and controls can work together to produce extremely accurate surfaces directly from the machine.

CGS North America's CAM-TOOL platform, for example, is designed around high-accuracy mold and die machining and emphasizes improved surface finish, reduced EDM requirements and reduced finishing time.

The better the surface coming off the machine, the less work may be required downstream. That doesn't eliminate the need for skilled mold polishing or finishing. There will always be applications, geometries and finish requirements requiring specialized expertise. Instead, it allows manufacturers to use those skilled people where their knowledge creates the most value.

The Entire Machining System Matters

High-accuracy machining isn't created by software alone. It is the result of an entire manufacturing system working together. The CAD/CAM software needs to generate accurate toolpaths. The machine tool needs to execute those movements accurately. The control has to process the information correctly. The cutting tool needs to perform consistently. The workholding needs to remain stable. And the process needs to be repeatable.

When those components work together, manufacturers can begin pushing the boundaries of what can be produced directly from the machining center.

For mold builders competing globally, those incremental improvements can have a massive impact on lead time and profitability.

Automation Starts With a Repeatable Process

Automation continues to be one of the biggest conversations in manufacturing. Robots, pallet systems, automatic tool changers, 5-axis machines and unattended machining all offer tremendous potential.

But purchasing automation isn't the same as becoming automated. Before a process can run unattended, it first needs to be predictable. If a process depends on an experienced person constantly making adjustments, automation becomes extremely difficult.

This is why standardized programming and repeatable machining strategies are so important.

You automate consistency—not chaos.

Once a manufacturer develops a stable process, automation can begin extending productive machine hours beyond the traditional workday. That can mean running during breaks, evenings, weekends or completely unattended when the process allows.

The goal isn't simply replacing labor. The goal is getting more productive hours out of expensive manufacturing equipment while allowing skilled employees to focus on work that truly requires their expertise.

5-Axis Machining Opens New Possibilities

The continued adoption of 5-axis CNC machining is also changing what mold makers can accomplish. More areas of a mold can potentially be machined in fewer setups while giving programmers better access to complex geometry. That can contribute to shorter tool lengths, improved rigidity and the ability to reach areas that traditionally required additional operations.

When paired with the right CAD/CAM strategy, 5-axis machining becomes much more than simply another machine tool. It becomes another opportunity to rethink the manufacturing process.

The question becomes: What work are we doing today because we have always done it that way—and what could technology allow us to eliminate tomorrow?

Solving the Skilled Labor Challenge Through Knowledge Transfer

The skilled-labor shortage isn't going away simply because manufacturers purchase better equipment. Technology still requires knowledgeable people. The opportunity is to make that knowledge easier to transfer.

Imagine taking decades of machining experience and turning portions of it into standardized processes, templates and proven machining strategies. Now a younger programmer doesn't necessarily have to spend 20 years discovering everything independently. They can begin with a stronger foundation.

The experienced employee still plays a critical role—but instead of being the only person capable of producing a particular result, their knowledge becomes part of the company's manufacturing system.

That may become one of the most important advantages technology provides the next generation of manufacturers.

Where Does Artificial Intelligence Fit?

AI is quickly entering conversations throughout manufacturing, and mold making will be no exception. The long-term potential is enormous. As manufacturing software becomes better at analyzing information, identifying patterns and recommending strategies, programmers and machinists could gain increasingly powerful tools for making decisions.

But AI shouldn't be viewed as a magic button.

The best results will still come from combining technology with real-world manufacturing knowledge. The manufacturers positioned to benefit most from AI will likely be the ones already working to standardize their data, processes and manufacturing strategies.

In other words, preparing for tomorrow starts by improving the process today.

The Future of Mold Making Is Connected

The future mold shop won't be defined by one machine, one piece of software or one automation system. It will be defined by how well everything works together.

CAD/CAM. Machine tools. Cutting tools. Controls. Automation. Inspection. Finishing. And most importantly—people.

The manufacturers that connect those pieces effectively will be able to increase productivity, improve quality and compete in an environment where skilled labor remains difficult to find.

Technology doesn't remove craftsmanship from mold making. It gives craftsmen better tools. It gives companies an opportunity to capture decades of knowledge before it disappears.

And it gives the next generation of mold makers an incredible foundation upon which to build.