Mold marking is the process of creating permanent markings on molds or molded parts to ensure traceability, identification, and compliance. These markings can include serial numbers, batch codes, logos, or manufacturing dates and are achieved using advanced technologies like dot peen marking or fiber laser engraving.
1. Varying Hardness of Molds
2. Need for Deep, Permanent, and Wear-Resistant Markings
3. Ensuring Precision and Consistency in Markings
4. Overcoming Limitations of Traditional Marking Methods
In-Mold Labeling (IML) integrates pre-printed labels directly into plastic products during the molding process, ensuring the label becomes a permanent part of the product. This method is ideal for industries requiring durable and visually appealing labeling.
Commonly used in food packaging (e.g., yogurt tubs), consumer goods (e.g., personal care bottles), automotive components (e.g., dashboards), and medical devices requiring durable branding.
Mold texturing creates patterns or finishes on mold surfaces to enhance both aesthetics and functionality. Techniques include chemical etching, abrasive blasting, laser etching, polishing, and EDM (Electrical Discharge Machining).
Widely used in automotive interiors (e.g., dashboards with textured finishes), consumer electronics (e.g., textured housings), handheld tools (e.g., non-slip grips), and premium packaging with matte or glossy finishes.
Dot peen marking is ideal for molds with hardness up to HRC60. It uses a carbide or diamond-tipped stylus to create deep, durable, and wear-resistant markings.
Fiber laser marking is suitable for molds with a hardness exceeding HRC60. It uses high power such as 60W, 80W, 100W to engrave precise, detailed marks.
| Feature | Dot Peen Marking | Fiber Laser Marking |
|---|---|---|
| Initial Cost | Lower (starting at $2,000) | Higher (starting at $5,000) |
| Operating Costs | Moderate (requires consumables like stylus replacements) | Low (minimal maintenance, no consumables) |
| Marking Speed | Slower (mechanical process) | Faster (laser beam process) |
| Durability of Marks | High (deep, wear-resistant marks) | Very High (precise, permanent, and resistant to extreme conditions like heat and chemicals) |
| Material Compatibility | Metals and hard plastics up to HRC62; limited contrast on some materials | Wide range, including metals, plastics, ceramics; excellent contrast and flexibility |
| Precision and Legibility | Moderate (dot patterns may lack clarity for intricate designs) | High (sharp, detailed markings suitable for small or complex designs) |
| Maintenance Requirements | Regular stylus replacements; moderate upkeep | Minimal maintenance due to fewer moving parts and solid-state design |
| Ideal Use Cases | Low-budget applications, softer materials, or environments where speed is less critical | High-volume production, harder materials (>HRC62), or industries requiring precision and speed |
| Industries | Automotive, aerospace, basic part identification and traceability | Medical devices, electronics, automotive branding, high-precision manufacturing |
An automotive customer required permanent and durable markings on molds with hardness levels ranging from HRC35 to HRC65. These molds were used for high-quality components, necessitating markings that could withstand harsh conditions like heat, abrasion, and chemicals while maintaining traceability.
HeatSign implemented a dual-technology approach:
The molds were securely positioned on the dot peen machine.
A carbide-tipped stylus was used to create a series of precise dots forming the required markings.
The process was monitored to ensure consistent depth and quality across all molds.
The dot peen machine successfully delivered deep and wear-resistant markings on the HRC55 molds. The customer reported that the markings remained clear and legible even after extended use in harsh industrial conditions. They appreciated the cost-effectiveness and efficiency of the dot peen solution.
A customer needed precise and permanent markings on molds with a hardness of HRC65. These molds were used in high-stress environments, requiring markings that could maintain their integrity despite extreme conditions.
Marking molds with a hardness of HRC65 posed significant challenges due to the high hardness level, necessitating a technology that could deliver precise, permanent markings without damaging the mold.
Fiber laser marking technology was selected for its capability to create precise and permanent markings on tough materials without touching them.
The molds were placed in the fiber laser marking machine.
A high-powered laser beam was used to engrave detailed and permanent markings on the mold surface.
The process parameters were carefully controlled to ensure optimal marking quality and consistency.
The fiber laser marking machine achieved precise, permanent markings on the HRC65 molds. The customer was highly satisfied with the clarity and durability of the markings, noting that they withstood the harsh conditions of their application environment. They also appreciated the speed and efficiency of the fiber laser marking process, which minimized production downtime.
HeatSign offers extensive experience and expertise in providing customized marking solutions tailored to your specific needs. We understand the unique requirements of various applications and deliver exceptional results for both deep markings on softer molds and precise engravings on harder materials.
Our marking machines are designed for industrial durability and reliability. HeatSign’s machines create durable markings that last, improving traceability and compliance with high-quality dot peen and fiber laser technology.
We provide outstanding after-sales service and support. Our support team helps your machines work their best so you can focus on your main business tasks with confidence.
Choose HeatSign for top-notch marking solutions with industry expertise, quality machines, and great customer support.
HeatSign offers top-quality, durable machines tailored to your specific needs. Contact HeatSign today for personalized recommendations and expert support. Let us help you achieve superior markings for your industrial applications.
What maintenance is required for dot peen and fiber laser marking machines?
Dot peen machines require checking for wear on components. Fiber laser machines need periodic inspection of the laser optics to ensure optimal performance. HeatSign provides detailed maintenance guidelines with every purchase.
Can I use these marking solutions for different materials?
Yes, both dot peen and fiber laser marking technologies are versatile and can mark a wide range of materials, including metals, some plastics, and more. Each technology has specific material compatibility; consult with HeatSign for tailored recommendations based on your needs.
What kind of after-sales support does HeatSign offer?
HeatSign provides comprehensive after-sales support, including installation assistance, guide of machine operation, troubleshooting guidance, and ongoing maintenance services to ensure your marking solutions operate efficiently.
