The workpiece can be turned upside down
Thread Rating:
|
jakethomas Tipsy Warlock   Posts: 38 Joined: Aug 2021 Reputation: 0 |
28 Feb 2022, 11:37
It is necessary to scrape a line along the turret axis that is one or two deep with tenth or two deep strokes with a CNC turning parts tool that is one or two deep. By rotating a boring bar 180 degrees, an ordinary boring bar can be transformed into something useful for aligning the cutting edge with. Here are some additional pointers and tricks for maximizing your productivity when using a CNC lathe to cut metal, which builds on the theme of last month's column:
When working with plastics that are difficult to turn, try turning off the constant cutting speed to see how it affects your work. If you have the ability to manually control the cutting speed, it can help you maintain better control over the stringy chips that result from the cutting process. Chip control in a CNC lathe can, in some cases, be a significant hindrance to the unattended machining of certain types of plastics, particularly when the lathe is running at high speeds, which can be problematic in some cases. The chip load can be increased by either slowing down the spindle or increasing the feed rate in order to thicken the chip material, both of which are possible. Increasing the chip loadIn some cases, even a seemingly insignificant task, such as turning off the coolant, can be extremely beneficial in maintaining control over the chip. With a CNC lathe power chuck, one of the most common issues that users encounter is getting the fine serration top jaws to fit properly in the chuck. Because of the 1mm serrations on the surface of the blank, it is very easy for one tooth to become misaligned, resulting in the centering of a blank becoming out of alignment. Aside from that, it's also difficult to measure three jaws and adjust them to the middle of their range of motion. In order to avoid having to use a measuring tape, I created special labels with the basic sizes engraved on them. This allows me to quickly set the jaws to a diameter range and hit all of the serrations with the same radius without having to think about it. An engraving mill can be built for as little as $5 and will only take a few minutes of your time to complete. Preparation is essential before using the jaws. Make certain that the part of the jaws that is attached to the labels has been thoroughly cleaned before use. If any fine jaw serrations have formed on the jaws after reinstalling the top jaws, it is recommended that you use a scratch brush to remove them before continuing. CNC milling a workpiece upside down and looking at it through a magnifying glass can help you determine whether or not a tool is aligned with the scribed centerline. When performing bar pulling operations, it is preferable to use a spindle liner that is approximately the same size as your raw stock in order to achieve better results. The illustration depicts a straightforward spindle liner that lacks any complex features. Do not forget to record the X-axis offset of your tool on the storage tube or directly onto it when you remove it from the lathe after you have finished using it and after it has been set up and tried out for the first time. It is likely that the next time you use that particular tool, you will be able to save time as a result of this. While it is possible that the offset is not exactly perfect, it is more likely that it is very close to being perfect. It's a standard feature on all of my external boring tools, and it butts up against the turret when not in use. In the event that I remove the holder from the machine as a result of doing so, I will be in a position to maintain an accurate X offset. When re-creating the tool's configuration, it is critical for me to keep the X offset offset in mind. It is possible to run the spindle in reverse to make a light test cut on the outside diameter of a part with an internal tool in order to set an accurate X offset without having to make and measure a bore if the machine's X-axis travel is sufficient and the control allows it. In order to accommodate the fact that the tool is in the negative X quadrant, I enter the offset on my machine as a negative X value. In order to accommodate the tool's location in the negative X quadrant, the offset is entered as a negative X value. It is important to pay close attention to the question of whether the control will accept a negative value while still performing the offset calculations properly. In most cases, precision measurement of an outside diameter (OD) is far more straightforward than it is to accurately measure a bore or hole. When performing bar pulling operations, it is preferable to use a spindle liner that is approximately the same size as your raw stock in order to achieve better results. A product that I designed and developed is single spindle liners that are designed to be dropped into the headstock. In order to save money, they use standard pipe and tubing sizes that are widely available on the market. When you receive a cutting order that does not meet the minimum requirements, you can create a batch of disc blanks using a waterjet or laser cutter to fulfill the order. Put these items on a shelf and the next time you need a special liner diameter, you will already have half of the work done for you. This will save you time and money. Make use of a piece of tube to hold the discs in place while the rest of the assembly is being completed. After that, with just two quick welds, you'll have a low-cost spindle liner for whatever oddball size you happen to be running on your machine. The last thing anyone wants to see at the end of the process after their CNC turned part has been finished CNC CNC milling is for their part to be ruined and scrapped. While employing the proper technique in conjunction with the proper tools is critical to keeping jobs on schedule and within budget, there are additional considerations to be made prior to reaching the final stage of the project's completion. The following are some suggestions for things you can do to ensure the best possible surface finish: |
||
|
|
|
Users browsing this thread: 1 Guest(s)