CNC စက်နှင့် 3D ပုံနှိပ်ခြင်းအကြားကွဲပြားခြားနားမှု
နည်းပညာသည်အင်ဂျင်နီယာနှင့်စက်ယန္တရားများကိုတိုးတက်ပြောင်းလဲစေပြီး၊ သင်သည်အကောင်းဆုံးသောပစ္စည်းကိရိယာများကိုအသုံးပြုပြီးသင်၏စီးပွားရေးကိုရှေ့သို့ ဦး တည်နေသည်ကိုသင်သိလိုသည်။ ဤတိုးတက်မှုအချို့သည်ကွန်ပျူတာဂဏန်းထိန်းချုပ်မှု (CNC) စက်နှင့် 3D ပုံနှိပ်ခြင်းတို့တွင်ဖြစ်သည်။ သူတို့နှစ် ဦး စလုံးကွဲပြားခြားနားသောပစ္စည်းများနှင့်အတူအလုပ်လုပ်ကြသည်။ သို့သော်သင်၏လိုအပ်ချက်များအတွက်မည်သည့်တစ်ခုကအကောင်းဆုံးဖြစ်သနည်း။
CNC machining and 3D printing have similarities and differences, and each has unique benefits. They have varying circumstances where you would want to use them regarding cost and availability. Breaking down each manufacturing style will help you pick the best method for you and your business.
Their main differences occur in production, waste, scale, material availability and size of the parts.
SIMILARITIES BETWEEN CNC AND ADDITIVE MANUFACTURING (3D PRINTING)
CNC machining and additive manufacturing are both computer-controlled solutions to making products out of a given material. They’re both machines at the forefront of building technology safely and efficiently.
As machinists and engineers want to build a prototype, a part or a custom product, they can turn to one of these machines to do the job for them. As long as the machines have the design, you don’t have to worry about human error because the machines are automated. While this doesn’t mean issues don’t arise, there’s more consistency with production and less chance of injury.
There is some overlap with these two manufacturing methods. Some CNC machines can use STL and OBJ files, which 3D printers also accept.
CNC machinery is older than 3D printing and still has a stronger foothold in manufacturing. The form started in the 1940s and had molded to fit into the industry up to the present. 3D printing came along in 1986. It’s still relatively new and evolving to be more accessible and versatile. 3D printing can help in some areas of prototyping, but it’s not a replacement tool for CNC machining.
They’re not so much alternatives to the other as they are both aspects of the manufacturing world. They meet different demands and handle different materials and markets. CNC machines and 3D printing both have unique capabilities and constraints that suit them for specific jobs. As they fit their niches in the market, you’ll want to compare it to whatever industry you’re in.
DIFFERENCES BETWEEN CNC MACHINING AND 3D PRINTING
From their building methods to what applications they can handle, CNC machining and 3D printing offer creative solutions in vastly different ways. Finding out their differences and strengths will help you find which one is right for you and your business.
3D printers are typically more efficient than traditional manufacturing. The printer uses the materials that make up the item it’s creating, whereas traditional manufacturing methods such as CNC Machining require more materials for the mold to work. On average, 3D printers produce less waste than traditional manufacturing methods.
However, when production is large-scale, traditional manufacturing methods have a distinct advantage. Assembly lines are faster than a 3D printer in mass production because printers build layer by layer. In the hours that it could take to 3D print a product, an assembly line could have mass-produced hundreds of the same product.
Additionally, 3D printers can only use the area of the printing bed for making parts. Large-scale parts might not fit in that space. While the parts can be broken down into smaller pieces 3D printers can build, that might not be cost-effective and will take time. Traditional manufacturing has the advantage of the assembly line’s labor and will be able to produce items on a larger scale. Future 3D printers could be able to build larger items, but not on the level of what CNC machines offer with regard to quality and quantity.
3D printers can manipulate different materials such as plastics, metals and polymers. However:
- Not all 3D printers can use these materials. It takes separate machines for each material.
- 3D printers cannot work with every material that traditional manufacturers use due to high melting points.
- Some projects might not be able to consider using 3D printers if they require specific materials that are incompatible with the printers.
Here is the bottom line — 3D printing won’t replace traditional manufacturing because of its disadvantages in mass-produced items.
3D Printing vs. Traditional Manufacturing
CNC machining starts with a block of material and shapes it with a rotating tool. Following the program, it carves away excess until you have the finished product. This is the subtractive method because it’s taking away material.
သင်၏ဒီဇိုင်းကိုတည်ဆောက်သောထပ်ဆောင်းနည်းဖြင့်သုံးဖက်မြင်ပုံနှိပ်ခြင်း။ နည်းလမ်းနှစ်မျိုးလုံးတွင်ကြာရှည်ခံမှု၊ တိကျမှုနှင့်ပစ္စည်းများကိုအသုံးပြုခြင်းတို့တွင်အကောင်းအဆိုးများရှိသည်။
CNC နှင့် 3D အတွက်ပစ္စည်းအသုံးပြုမှု
CNC စက်ပစ္စည်းအမျိုးမျိုးနှင့်အလုပ်လုပ်သည်။ သူတို့သုံးနိုင်သည်
- သတ္တုစပ်
- ဝုဒ်
- Acrylic
- မော်ဒယ်အမြှုပ်
- Thermoplastics
- ဖယောင်းစက်များ
CNC စက်များတွင်လေးလံသောပစ္စည်းများကိုစီမံနိုင်သောအပူပေးစနစ်များရှိသည်။ ထိုပစ္စည်းများသည်အင်ဂျင်များ၊ လေယာဉ်များနှင့်အခြားစက်များအတွက်အစိတ်အပိုင်းများကိုတည်ဆောက်ရန်အသုံးပြုသည်။ သူတို့ကအတိအကျကိုအားကိုးပြီးကြာရှည်ခံဖို့လိုတယ်။ ဒီဇိုင်းအတွက်ဖြတ်တောက်သောကိရိယာများကိုပြောင်းလဲရန်လိုအပ်ပေမည်။ သို့သော် CNC စက်တိုင်းအတွက်မည်သည့်ကိရိယာကိုမဆိုစံသတ်မှတ်ထားသည်။
3D printing doesn’t have this variety, using materials like plastics or resins. They can’t produce items strong enough to withstand intense environments like airplanes or other machinery. Also, 3D printers can’t switch between materials. Certain 3D printers are for specific kinds of material.
3D and CNC Precision of Production
CNC machining is more precise and consistent than 3D printing because they have a higher tolerance for heat. 3D printers end up with distorted products when there’s too much heat. They can offer precision but cannot remain consistent. 3D printers are often regarded as more user-friendly than CNC machines, but when they malfunction, someone has to troubleshoot them because the fault means production of unusable products.
CNC and 3D Speed of Production
CNC is a faster solution than 3D printing. Automated CNC machines can work around the clock as long as they’re properly maintained. A project that could take CNC machining an hour would equate to a 3D printer taking hours to get the final product because it has to build the product layer by layer. A 3D printer’s pace might have to slow down during the process to get the design right. Different 3D printers could also be programmed with specific speeds that you can’t alter. It depends on the machine you use.
3D printed products also require work after they’re built. The products need to be washed, polished and sealed before people can use the product. This could extend prototype testing to a longer time period with a lot of waiting in between. 3D printers are also popular for smaller, custom-manufactured items. But if you have to wait for the item to be built and still do a lot of work post-print, you lose a lot of time before you can move the product.
Versatility of Machinery for CNC vs. 3D
CNC machines can produce fixtures, tools and custom-designed parts. They have a wide range of quality settings so you can make a prototype that has a rougher design in some areas and perfect in others so you can test that part.
When testing prototypes for a project, a CNC machine could quickly build a design so the developers can test it. 3D printers don’t have these kinds of options. It will slowly shape the design as it was programmed. Accuracy is key when constructing a final product, but when time is a constraint and you want to test some prototypes, 3D printers can slow down you and your project. Designs made for a CNC machine usually can’t be substituted with a 3D printer because the products are voluminous and it would take hours for a 3D printer to finish them.
Noise and Mess Produced by CNC and 3D
These differences relate to the subtractive and additive methods. CNC machining is much more noisy and messy than 3D printing because it uses a tool to cut away material. This creates noise and a lot of scrap metal or wood shavings. CNC machines cause a lot of vibrations, so they need to be in a space where they won’t bother anyone. 3D printing only uses the material it needs for the product. There’s little to no waste, and the printers don’t vibrate like a CNC machine.
Applications for CNC and 3D
CNC machining can manufacture bigger products and can handle heat-resistance. 3D printing has more niche categories, such as printing food or working in space.
CNC Machining vs. 3D Printing
World Finance ၏အဆိုအရ 3D printing သည် CNC စက်ကိုအစားထိုးနိုင်သောအဖြေတစ်ခုမဟုတ်ပါ။ 3D ပုံနှိပ်ခြင်းသည်ထုတ်လုပ်မှုလောက၏အစိတ်အပိုင်းတစ်ခုဖြစ်သည်၊ သို့သော်လူတိုင်းသိသည့်အတိုင်းစျေးကွက်ကိုပြောင်းလဲပစ်တော့မည့်တီထွင်မှုမဟုတ်ပါ။
3D ပရင်တာများသည်ထုတ်လုပ်မှု၏အချို့သောရှုထောင့်များကိုတိုးတက်စေနိုင်သော်လည်းစျေးကွက်တစ်ခုလုံးကိုကိုင်တွယ်နိုင်စွမ်းမရှိပါ။ အဘယ့်ကြောင့်ဆိုသော် CNC စက်သည်အခြေအနေများစွာတွင်ပိုမိုကောင်းမွန်သည်။ CNC စက်သည်စျေးကြီးသော 3D ပရင်တာများထက်ပိုမိုကောင်းမွန်သည်။
သေးငယ်သည့်ထုတ်လုပ်မှုအတိုင်းအတာအရ 3D ပရင်တာများသည်စီးပွားရေးလုပ်ငန်းများအတွက်စျေးကြီးသည့်မှိုများကို ၀ ယ်ယူခြင်းမှငွေကုန်သက်သာစေသည်။ ထုတ်ကုန်၏ပုံသဏ္andာန်နှင့်ဗေဒဆိုင်ရာထိုးထွင်းသိမြင်မှုကိုလည်းသူတို့ကပေးသည်။ ဒါပေမဲ့ထုတ်လုပ်မှုတိုးလာတာနဲ့အချိန်ကုန်လာတာနဲ့အမျှ CNC စက်တွေကသူတို့ကိုင်တွယ်လို့မရဘူး။
3D ပုံနှိပ်ခြင်းအပေါ် CNC စက်၏ကောင်းကျိုးများ
CNC machining fits with mass production. It can create many products in a shorter period, where 3D printing would take hours to create one product. That’s just one advantage of CNC. Let’s take a look at some others.
Prototyping Becomes Easier
CNC machines are better for prototypes that can withstand structural tests because they carve the design from the material. They can also build prototypes out of the exact material that will be used to make the final product.
Structural tests and alterations will be more accurate because they use the same material. This could speed up the production process because the changes will be to the design and not the material. 3D printers don’t fabricate prototypes with the structural strength, so they can’t conduct physical tests.
Prototype Integrity Improves
CNC machines don’t heat the material and reform it. The material stays stronger and has a better structural integrity than 3D printers, which have to heat the material to build the intended product. 3D printers might also have to add foreign materials to the mixture to be able to make the prototype, which CNC machines don’t need.
Surface Finish Advantage
CNC machines provide better surface finish than 3D printing because the materials don’t deform during the process. The rigid material and cutting action keeps the product together and has fewer chances for mistakes or deformations to occur. 3D printing has poorer surface finish. The material bends, warps or distorts because the material is layered heated plastic.
Tolerance Levels Rise
CNC machines work with higher precision, so the parts have a better tolerance than 3D printers. Because of tolerance level, prototypes that have shafts or connect to other parts will be higher quality and will more likely fit with other components.
Price and Volume Don’t Dictate Price
3D printing costs depend on the volume of needed materials. Final product volume doesn’t dictate the price for CNC machines. 3D printing wouldn’t be cost-effective with larger orders, and this is the situation where CNC machines thrive.
Quality in Favor of CNC
Larger layers from a 3D printer are faster but not as high-quality as smaller layers. If you need a prototype, you have a choice to get it fast but of slightly less quality, or wait longer for the prototype with the best quality the printer can provide. CNC machines have the option for you to choose resolutions for your item. They can offer varying qualities in a short amount of time, making them ideal for quick builds and immediate results for testing.
Keeping Costs Down
If you have the option of choosing which manufacturing method to use for your product, CNC machining is usually cheaper than 3D printing.
Contact Kaito mould Works, Inc., for Your CNC Machining Needs
CNC machining can build the parts you need for your business. Our expert machinists at Kaito Mould Works, Inc., will provide outstanding work that will help you reach your goals. We aim to help you get the correct part for your project.
Kaito Mould Works, Inc., provides services for custom machine building, precision parts machine and reverse engineering of components to give you the product you need promptly. We deliver exceptional CNC machining solutions for manufacturers in multiple industries. Our skill in specialization and dedication to our work will help you and your business stay on the cutting edge of the industry. We have the solutions you need. Get in touch with us today.
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