Reducing Downtime & Repair Costs

Avoid Shipping Molds Out for Minor Defects

Many repairs that traditionally required outside TIG or laser welders are actually small, localized defects: parting-line nicks, ejector pin damage, edge chips and scuffs. When you send a mold out:

• You pay for shipping and outside welding services.
• You lose production while the mold is gone.
• You may need to re-qualify the tool when it returns.

With the MoldMender Micro Welder, those small repairs can often be completed on-site in hours instead of days, turning what used to be a major disruption into a routine maintenance task.

Less Distortion Means Less Rework

Traditional welding methods can introduce heat that distorts shut-offs, sealing surfaces and delicate details. That can lead to:

• Additional bench work to correct warpage.
• Unexpected flash or dimensional shifts in production.
• Longer time to re-validate a repaired mold.

The micro welding process uses low heat to preserve the original geometry, minimizing rework and helping you return to acceptable parts faster.

Protecting Part Quality While Increasing Flexibility

Fine Control on Small Features

Parts increasingly rely on precise micro-features: thin walls, micro vents, small edges and delicate shut-offs. These areas can be easily over-welded with conventional processes. Micro welding offers:

• Small, controlled deposits that target only the defect.
• Reduced risk of sink marks or waviness in thin sections.
• Better control over sealing surfaces that impact flash and part quality.

Flexibility Across Tool Steels & Repairs

The MoldMender Micro Welder is designed to work with a variety of tool steels and repair types using ribbon, wire, powder or paste. That means one system can support:

• High-volume production molds with frequent parting-line touchups.
• Complex dies and tools with detailed shut-offs and cores.
• Prototyping and low-volume tools that cannot justify repeated outsourcing.

Common Use-Cases for MoldMender Micro Welding

Injection Molding

• Repairing parting-line erosion and nicks.
• Restoring edges and corners that cause flash.
• Touching up gates, runners and vents.

Die Casting & Tooling

• Fixing hotspots and small defects in shut-offs.
• Addressing localized wear without major teardown.
• Helping extend the life of high-value tools.

Toolroom & Maintenance Departments

• Handling emergency repairs when molds are needed urgently.
• Performing planned preventive maintenance touchups.
• Building internal capability instead of relying on outside vendors.

For step-by-step instructions on specific repair types, see the companion page MoldMender How-To.

Integrating Micro Welding With Other Rocklin Solutions

Pairing Micro Welding with Tungsten Carbide Coating

After repairing worn surfaces, you can further extend tool life by applying Rocklinizer® tungsten carbide coating to high-wear areas. A typical workflow:

1. Repair small defects with the MoldMender Micro Welder.
2. Stone and polish to restore geometry.
3. Apply Rocklinizer carbide coating to protect critical surfaces.

Preparing Surfaces with Portable Laser Cleaning

In environments where rust, scale or contamination build up on tooling, you can use portable laser cleaning to remove contaminants before micro welding and coating. This helps:

• Improve bonding quality for both micro welding and carbide coating.
• Reduce manual grinding and blasting near delicate features.
• Shorten the overall repair cycle time.

ROI Snapshot: Where Shops Typically See Payback

While every plant is different, many customers see payback from the MoldMender Micro Welder in a short period based on:

• The number of molds and dies that previously had to leave the facility to repair relatively small defects.
• The cost and lead time associated with outside welding and emergency tool builds.
• The downtime avoided by handling issues quickly on-site.

When combined with the Rocklinizer® carbide coating and portable laser cleaning solutions, micro welding becomes part of a broader strategy to keep tooling in production longer and reduce overall cost per part.

See If Micro Welding Is Right for Your Molds & Dies

If you regularly send molds or dies out for minor repairs, or struggle with small defects causing downtime and scrap, the MoldMender Micro Welder may be a fit. A short discussion about your tools, materials and common failure modes can help determine your potential savings.

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