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    Five Suggestions for Metal Stamping Automation


    Summary:

    Overview of Metal Stamping Automation

    Metal stamping is also referred to as a metal stamping operation. Now imagine a scenario in which dies weighing more than 15,000 pounds are used to run a stamping line with a relatively small number of various metal parts, and multiple dies must be replaced within a given time frame. This is definitely not ideal and acceptable, as such a setup is undoubtedly inefficient. This is why manufacturers are looking to increase production through automated press lines.

    Recommendation 1: Quick mold change

    Quick Die Change (QDC) is more than just die clamping. It is essentially an efficient setup, including an automatic storage and retrieval system for automatic transfer of tools to the press, as well as automatic clamping. As manufacturers increasingly rely on lean manufacturing, production cycles become shorter, leading to more conversions.

    This would have been fine 10 years ago, as metalworkers might have been more inclined to accept a 2-hour switch because it was less likely to happen. But that is no longer the case to this day. In most cases, tools are replaced multiple times a day, and metal workers can no longer accept long-term replacement, as this may adversely affect their productivity and profitability. The automation brought about by QDC may only be able to improve efficiency across the board, as the number of metal workers who choose (or at least ask) QDC increases dramatically.

    Recommendation 2: Robot parts loading and unloading
    When it comes to automating metal stamping lines, robots will always come into play because they are well suited to automate repetitive tasks that humans are usually reluctant to do. The type of robot used in automatic presses varies depending on the application, cycle time requirements, and other specific factors.

    Other traditional metal workers may think that using robots to handle pressure and automation may require a fully functional six-axis industrial robot that is both compact and feature-rich, but in fact, new robotics technology provides simpler and more cost-effective things. In fact, the recent introduction of collaborative robots, or cobots, provides a low-cost alternative to press line automation with lower cycle time requirements. They are now more accepted throughout the manufacturing industry.

    Collaborative robots for stamping automation can handle variability, which is their biggest selling point. They do not require protection, but instead use pressure and position sensors, enabling them to assist humans in their work. They may also be portable or wheeled in order to provide the required mobility for the person operating the machine.

    Recommendation 3: Part transfer system for progressive dies
    Many metal workers are also seeking automated stamping line systems for metal parts, especially using progressive dies.

    In progressive dies, each station is responsible for different functions, and press automation allows parts to quickly pass through multiple steps. Thanks to the linear automatic press system, metal parts can effectively pass through the mold station, so that the press circulates as quickly as possible.

    Automated press systems are capable of moving each part in one motion, providing fast transfer and press cycle times. Many metal workers continue to rely on this pressure and automation to increase productivity and profitability without compromising operator safety.

    Recommendation 4: Quality control
    Another way to ensure the effectiveness of metal press automation is quality control, which integrates the automated press system into the press itself.

    By adopting industrial cameras on the production line, it is possible to generate part images of ever-increasing quality. In fact, today's metal presses can retrofit the vision system to closely monitor the metal parts when they exit the press, and check for any abnormalities in the size and parts within a few milliseconds without affecting production efficiency.

    Recommendation 5: Machine supervision and reporting
    Although this is not directly related to stamping automation, proper machine supervision and reporting will definitely increase the productivity of the stamping line.

    Metal workers need to have a certain degree of control over the process, and they need to collect data to obtain this control. But collecting data is not enough. A press can provide all kinds of data you want, but how you analyze and filter out the most relevant data is more important, which is why despite the high degree of automation of the machine, you still want to deploy manpower on the machine.

    In addition, some manufacturers have created machines with "smarter" monitoring and reporting capabilities. Not only are they able to compile data, they are able to analyze and report it in an easy-to-understand format, enabling plant managers to act quickly. Machines like this are capable of tracking many parameters, including productivity, part quality, and downtime. For example, some presses can effectively process downtime data, including the reason for the downtime provided by the operator and the mechanical production log for a specified period of time.

    The results are then automatically sent to management, where the data is analyzed to find the root causes of inefficiencies, such as material shortages, operator inefficiency, maintenance issues, etc. They're not just numbers in a spreadsheet; they're actionable intelligence.

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