mold modification

As a professional plastic mold company, during mold manufacturing, we normally have some requirement for mold modification, this is a very common issue when we manufacture molds for our customer, below is a step that how to handle this modification in our mod companymold modification

  1. When we receive a request for modification from our customer. After that, we analyze the requested modification, which must be done at least within the same day as the files have been received or latest the morning after if the files have been received in the afternoon. It is important to create a clear illustration of the modification (ppt file to list the modification items) for internal communication with our team and with customers. Note since that part drawing that is not approved for production so we cannot save to our database.
  2. We need to send this modification illustration to our mold shop manager, responsible Quotation Engineer.
  3. The mold production manager then checks out, at least within the same day, Together with the mold master to decide how long time that is required for the modification. We will specify one shortest possible lead-time and one maximum time required. Because sometimes the customer is very busy or maybe not so hurry.
  4. The Quotation Engineer then prepares an offer as soon as possible. This shall be done latest within the same day as he/she receives the working steps and lead-times from the mold manufacturing department. The offer should include the offered price and the minimum and maximum lead-time. Once ready with the offer the Quotation Engineer sends the offer to project manager, then the project manager directly sends to customers.
  5. Once the customer approves the concerned modification the Project manager will use the new valid part drawing is saved into our database and inform the mold design department to update the tool drawing immediately. Another thing that must be controlled by the Project manager is that the promised lead-time will be fulfilled. Send an email to production department or mold shop manager. That will make it easy for the mold shop manager to keep control of the lead-times.
  6. After the modification finished, new mold trial is needed, after mold trial and check the modification is done according to the new drawing, then send the new samples to customers, during the same time update the measurement report and send to customer as well.

Sincere Tech is a professional China plastic mold company, we offer one-stop service from part design, prototype, mold design, mold manufacture, injection molding parts, secondary process, and assembly, if you have a project that needs to help, you are welcome to contact us.

I am trying to find out how large manufacturing companies grind precision core pins. As a plastic mold maker, I am aware of the manual methods using a surface grinder and Harig type spin fixture and am also familiar with the Ded-Tru machine.

However, these methods are exceedingly slow, albeit quite precise. There just has to be some kind of OD grinder, tool grinder, centerless grinder or special CNC tool grinder that can grind complex mold core pins accurately and with an excellent finish.

Plastic Mold

But in today, normally the mold maker is not making any pins or insert pins by themselves, you can find some precision components company who specializes in making high precision components, like insert pins and some small inserts, you only need to send them the 3D, 2D drawing and mark the tolerance for each dimension, then they will do the rest quickly and accurately.

But for some other mold components, you may have to do this by yourself.

Another common material for various injection mold components is a beryllium copper alloy also called Mold Max. It has excellent heat transfer qualities, can be polished and is also pre-hardened. All this combines to make it the material of choice for things such as core pins.

However, is beryllium copper/Mold Max safe?

In my experience is depending on which area of mold components you are using for? I made 64 cavities molds which the parts have some small ribs, the customer was a requirement with MoldMax for better cooling, as you know sixth four core inserts made by Mold Max, that is not cheap, but after the second time of mold trial the small ribs start to break, not only one or two but around 10 inserts had broken done, base on my experience on this material, for some small ribs it is not good option to use Beryllium copper, if some deep ribs but have much more space, then that will be better option to use this material, because you will get good cooling to save cycle time.

This covers the topic in detail and my conclusion is that it is basically depending on the part design, Is you have a plastic mold project that may need this service, you are welcome to send me your drawing, we will suggest you some good option for you to make choices this could be safer for your project.