High-speed, high-volume manufacturers have been racing against time, but they cannot compromise on production quality. These limitations mean that for marking parts or components in this environment, on-the-fly laser marking system is the only option.

In almost all manufacturing and production environments, the marking of products or components with indelible serial numbers, part numbers or batch numbers is an essential task. On-the-fly laser marking is an established, cost-effective and reliable method of creating these marks, but it is not suitable for all applications. Especially for high-speed, high-volume production, creating marks on components or batch materials using such systems can be challenging.

For example, some conventional static marking techniques (such as scribing or dot matrix) cannot be easily used online in a continuous automated manufacturing process. Other technologies may need to temporarily suspend the manufacturing process. Even though each of these pauses may only last for one second, they can still accumulate quickly in a high-speed, high-volume process, causing the company to waste a lot of production time.

The obvious way to solve this problem is to use a laser-based system that can track parts or assemblies as they move along the production line, creating precise and indelible marks without disrupting the production process.

By performing laser marking in this way, delays in production can be eliminated without sacrificing the quality of the manufactured marks. These meticulous markings will not deform even on components that move at the neck-folding speed. In addition, laser marking can be performed at all common production line speeds, thereby reducing cycle time and improving the quality of the marking. Being able to place a unique, serialized Data Matrix code in just half a second, instant marking lasers will become an important part of mass production.

The laser marking process in flight starts from the moment the component enters the marking unit, and when it passes through a very narrow window, the marking process continues. When the component leaves the marking unit, all relevant data will be recorded on it.

However, the implementation of this system may need to overcome many major technical challenges.

First of all, the marks must be applied with high accuracy, and these marks must be applied on the part with the required quality. The trademark must be permanent, indelible, legible and legible, and may have to appear several times on a single component. The marker may also have a predefined location. The usual specification is a marking window around 100 square millimeters (0.16 square inches).

The types of marks that may need to be made are also very different. Some applications may only need to mark the serial number, production date number or batch number. In other applications, unique tags may be required as part of a complex data capture system that tracks the progress of a single unit through the production cycle.

The properties of the material to be marked (such as hardness) must also be considered, as well as the depth required for the marking. The amount of data that needs to be recorded during each marking process must be further considered.

Therefore, in order to ensure that the trademark has all the correct quality, it is crucial to always accurately record the speed of the production line. The speed can be measured using an encoder wheel, which is located on the conveyor belt or on the component itself, and feeds the collected data back to the marking machine, and then the marking machine can adjust its operation to accommodate slight fluctuations in linear speed.

The high-power laser can produce marks with sufficient depth and clarity in a short time, and can even match the fastest linear speed. Alternatively, a larger marking window can be used, effectively giving more time to perform the process. Even so, when the material passes through the unit, it can take half a second to create a complete, unique machine-readable data matrix code for each component or part of the material.

Manufacturers can use data capture software to monitor the quality of the components they produce. This data can be layered, adding new information as each component passes through the production process, and can be read at different stages before tagging other information to that component. By recording the processing time and date of parts at each different station and each subsequent inspection process, for example, the productivity of a specific production line can be determined.As we have seen, many factors need to be considered when implementing a dynamic laser marking system. Inevitably, each installation will be customized for the specific application that will be used, and requires extensive customization. In some cases, the marking system and its related equipment can design the production process from scratch, but for most applications, the marking process must be integrated into the existing production line. Here, the available space is usually limited by existing equipment.

Sino-Galvo Tech. was founded in 2001, and our galvanometer scanners already have got CE, ROHS, FCC and REACH certifications, quality control in accordance with ISO9001 quality system standard, and we exported our products to many countries and regions.We also provide complete marking system including fiber laser marking machine, MOPA laser marking machine, production date batch number serial number laser marking machine and other laser equipment.

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