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If Part 1 of the Laser Marking Machine Integration Guide focused on the “foundation work” of laser integration—preparation, environmental conditions, and safety requirements—then Part 2 serves as the practical operation manual.

​For system integrators, project managers, and other technical professionals, integrating laser equipment into a production line is a complex yet essential task. High-quality laser marking enables reliable part traceability, but a series of steps must be taken to ensure safe and compliant installation.

Do you need a laser marking machine for your business, work, or clients? Laser marking machines on the market range from a few thousand to tens or even hundreds of thousands of yuan. How do you choose an economical and practical one?

1. Why Choose a Fiber Laser Cutting Machine? 2. Advantages of Fiber Laser Cutting Machines 3. Industrial Applications 4. Best Budget Fiber Laser Cutting Machines in 2026 5. How to Choose a Budget Fiber Laser Cutting Machine (2026) 6. Factors Affecting Price 7. Fiber Laser Cutting Machine Price Range (by Power/Model) 8. How to Use a Fiber Laser Cutting Machine (Simple Steps) 9. Top Fiber Laser Cutting Machine Brands Recommended in 2026

In 2026, more and more factories are discovering that traditional electric welding and TIG welding are not only inefficient but also highly dependent on operator experience, with even minor mistakes potentially leading to uneven welds, severe thermal deformation, and tedious rework.

Fiber laser welding machines offer significant advantages over other welding machines, including smaller welds, high precision, and faster speeds, and can easily be integrated with automated fixtures for automated welding production. However, some people still wonder why the welds sometimes turn black despite these advantages. This is primarily due to oxidation.

Plasma cutting and laser cutting differ significantly in principle, cutting quality, applicable materials, cost, and application areas:

I. What are welding hot cracks? Welding hot cracks mostly occur at high temperatures near the solidus line, and are characterized by their distribution along grain boundaries. Sometimes they can also form along "polygonization boundaries" at temperatures below the solidus line. They usually occur within the weld metal, but may also occur in the heat-affected zone (base metal) adjacent to the welding fusion line. According to the mechanism, morphology, and temperature range of crack formation, welding hot cracks can be divided into four types: solidification cracks, liquefaction cracks, polygonization cracks, and ductility loss cracks.

1. Hot Cracks 1.1 Solidification Cracks 1.1.1 Mechanism of Formation During the later stages of solidification, a low-melting eutectic liquid film weakens the intergranular bonds, leading to cracking under tensile stress. Commonly found in carbon steel and low-alloy steel welds with high impurity content, and in single-phase austenitic steel and nickel-based alloy welds.

Often, the base metal is preheated before welding. What are the specific reasons for this? Let's start with the conclusion: There are two main reasons: The first is to reduce residual stress in the weld; the second is to reduce the formation of hardened structures in the weld, thereby reducing the occurrence of cold cracking during welding.