我深金属标记是一个关键要求ndustries today. Surfaces with protective coatings or paint; or objects that will suffer from wear and abrasion often need deep identification marks. With the ever-increasing demand from the manufacturing world, the engraving and marking world is developing robust tools to deliver the much-needed arsenal. Two major methods dominating today’s markets are mechanical and laser dependent technologies. Laser etching or engraving and dot peen marking machines are essential tools, serving the industry.
Laser technology came into existence in the 1960s and its commercialization took further time. However, the industrial revolution had begun by the 1920s and 30s. Assembly lines streamlined production and increased efficiency. However, to maintain quality, traceability became an integral part of every manufacturing and similar process. Any defects found downstream or with end-users lead to recalling or re-manufacturing of goods and parts. Tweaks were made to the assembly or manufacturing process and the process then followed its usual flow. Traceability and tracking have been serving process-flow driven industries in general, and manufacturing industries in specific, multiple fold benefits. Machine operators can detect equipment defects and air-crash investigators can conduct thorough investigations because of this function.
Laser engraving is a process where a high-intensity laser beam cuts through a material, removing the surface in the process. The exposed cavity appears as an image to the eye. Laser etching machines on the other hand melt the material. In doing so, it alters the reflectivity of the surface and increases contrast. The melting process does remove material but is of the order of .001”.
The industrial revolution took place much earlier than the development of laser technology. Consequently, the requirement of deep metal marking arose much earlier than the development of laser tools. Mechanical solutions filled this gap.
点锤头标记方法是导致印度河try then. Its simplicity and further automation as well as an increase in sophistication make it a tool that is still in use today. Initially, metal stamping was done by hand. In metal stamping by hand, a hammer strikes a stamp which can be letters or patterns. The striking action leaves an indent of the stamp’s design on the metal’s surface. This process has further grown and is now done using machines.
DPM vs Non Contact
Laser engraving, on the other hand, is a non-contact process. This eliminates the worries that may arise due to mechanical tooling and consideration of material stresses. Furthermore, there is nothing to wear out. Hence, the engraving pattern is highly accurate and repeatable. A stylus that becomes blunt during the marking process can lead to many difficulties. Also, the laser allows access to areas of the workpiece that are difficult to reach mechanically. By focusing a laser beam, odd angles and locations can be dealt with.
The use of dot peen systems is especially suitable for the writing of alphanumeric serial numbers or 2D barcodes such as data matrix codes. This technique, however, is not widely used for the writing of 1D barcodes. This is because of the fact that 1D barcode readers need a higher level of writing contrast than 2D barcodes and dot peen marking machines are unable to provide requisite contrast levels.
Laser marker systems stand out with their ability to do different types of tracking codes and markings ranging from alphanumeric serial numbers to 2D barcodes.
Stamping is used in a variety of applications, especially those involving three-dimensional designs, lettering, or other surface engraving features. Such stamping products are commonly produced for home appliance manufacturers, automotive companies, the lighting industry, telecommunications services, military and defense, aerospace industries, medical equipment manufacturers, and electronics companies.
The Machines for Deep Metal Marking
Fiber Laser Engraving and Etching
简化标记和实时可追溯性是一系列fiber laser solutions。This Fiber Laser Marking System allows manufacturers to mark or engrave serial numbers, bar codes, 2D Data Matrix, and graphics on the widest variety of materials, including metals, plastics, and ceramics. The Fiber Laser is a referenced product in the Rockwell Automation Partne rNetwork that integrates into factory automation networks using native EtherNet/IP protocol and embedded controller technology.
It has a Ytterbium-doped fiber laser. The company offers a range of output power for the laser it integrates in its products. The lower power lasers are better for etching whereas the high power lasers are good at deep engraving and cutting. It has a galvanometer scanning setup and has a 7000mm/s engraving speed. Normally The laser supplier offers a 2-year warranty on the product.
上图中的机器是HS-DE01 Dot Peen Direct Part Marking。它的标记窗口为120 x 80 mm。它是一种气动机器，其运行速度为30-40mm / s。
This is the A-3000 SERIES air press。This press is ideal for assembly, punching, shearing, and staking of metal or plastic. The column height can be increased by adding a riser block between the base and the column. The A-3000 series pneumatic press has multiple built-in features for an increase in utility. Such as a T-Slot base for easy fixturing, dual hand anti-tie-down/anti-repeat controls, and a three-inch stroke length. An adjustable down stop/anti-rotate mechanism comes standard.
A major advantage of dot peen systems is their low price. These systems have a price ranging from 8,000 Can$ and 15,0000 Can$. Consequently, return on investment on such equipment is achievable in a short span of time. However, due to the physical contact between the system and the material, the marking tip has a high deterioration rate and often needs replacement. In business terms, this implies a recurring cost and a constant maintenance requirement of the dot peen marking system. But a contact method does have its advantages. The profound permanence of the marking that one can create from these methods can survive extreme usage, storage, and transport conditions. On the flip side, such deep markings lead to low-speed writing because the tip needs to scan the whole marking region and at times, multiple passes may be carried out.
除了在其他常见过程中使用的那些，金属冲压过程趋于相对较低的昂贵。但是张贴的主要问题是较高的压力成本。此外，也必须购买或制造模具，并生产custom metal stamping diesis a long pre-production process. This can have a significant operational impact considering situations where dies may need changing due to an alteration in design during production. Furthermore, there are secondary costs, such as cleaning and plating. But these are cheaper than similar requirements for other metal fabrication processes. Automation of stamping machines is relatively easy and machines these days can employ high-end computer-control programs. CNC marking machines come with the advantage of greater precision, faster production, and quicker turnaround times. The high level of automation also lowers the cost of labor.
In a nutshell, laser, dot peen, and stamping have their positives and negatives to offer when in use for deep metal marking. Deciding upon which technology and which machine to adopt falls into the user’s lap. Which technology is right for an intended deep metal marking is highly dependent upon existing infrastructure.
Keeping these factors in mind, users can delve into the market and select the machine that will fulfill their needs. A one-stop-shop for marking and engraving needs is also available at乐动全站APPfor the best laser engraver. They offer marking and engraving machines using these technologies and have multiple resources available for a better understanding of deep metal marking products.