• What is Tapping & Tapping on CNC Lathe | Difference Between Tapping and Threading | Dajin Precision
    2020/4/27 15:47:47

    Tapping is a common and useful manufacturing technique for threads of the workpiece, in this article, we’ll introduce what is tapping and its tool, learn about programming of tapping on CNC lathe and how to tap on a lathe, as well as the difference between tapping and threading. Related Read: Drill Tap Sizes ChartWhat is Tapping Process?Tapping in manufacturing is the process of cutting a thr...

  • List of Drill Bit and Tap Sizes – Drill Size Chart and Tap Size Chart
    2020/4/22 11:04:58

    Drilling is a process of producing a hole while tapping is a technique used to cut a thread inside a hole, so the drill bit and tapping tool are often used in sequential to fabricate CNC parts with thread holes. When it comes to the selection of drill bit sizes and tap sizes, there are standard drill and tap size chart for reference. What is the Drill and Tap Size Chart and Why to Use Them?Wh...

  • What are UNF Threads and UNC Threads? | Difference Between UNF and UNC Thread
    2020/4/21 18:03:28

    Threading is an important manufacturing technique for fasteners, there are many types of screw threads fabricated by CNC machining. Here we’ll introduce two typical threads with different pitch: UNF threads and UNC threads, what are the applications and difference between UNF and UNC Thread.What are UNF Threads and UNC Threads?UNF and UNC are two symbols of Unified Screw Thread Series, which defin...

  • The Maintenance of CNC Machines - How to Maintain a Lathe Machine | Dajin Precision
    2020/4/14 17:39:53

    When a CNC lathe has been used for a period time, the contacting parts will start to wear out or damage, the daily maintenance of CNC machines and scheduled maintenance can extend the service life of the machine components and wear cycle of mechanical parts, to prevent the occurrence of unexpected and malignant accidents, ensure the stable and efficient work and production, also fully exerts the a...

  • What are the Parts of a Lathe Machine - Lathe Parts and Functions | Dajin Precision
    2020/4/10 14:59:36

    Lathe machine is versatile in metalworking and usually used to cut the cylindrical workpiece, for producing specific CNC lathe parts, what are the parts of a lathe machine and their functions? The basic mechanism and functional tools combined to perform various operations. What is a Lathe?Lathe is a kind of machine which mainly uses turning tools to cut the rotating workpiece and remove exces...

  • What is Runout and Total Runout | How to Measure & Check Lathe Runout | Dajin Precision
    2020/4/3 16:52:01

    Runout is an important term in GD&T for circular parts, what is runout and how total runout tolerance applied? The article also shows how to measure or check lathe runout. What is Runout?Runout (Run-out) is the error of rotating mechanical system, especially the rotation direction of tool or shaft is not completely consistent with the main axis, its often applied to assembled parts with c...

  • What is Cylindricity & Difference Between Circularity and Cylindricity | How to Measure Cylindricity | Dajin Precision
    2020/4/1 14:48:52

    Cylindricity is important in the measurement of cylindrical machined parts, it’s a geometric tolerance that controls all the points on the entire surface of the cylindrical feature. Cylindricity tolerance can be applied to manage the manufacturing cost. Then how to measure cylindricity? Both are categorized as no datum feature and concerns circular elements, what’s the difference between circulari...

  • How to Sand And Polish Stainless Steel Parts - Methods of Polishing Stainless Steel | Dajin Precision
    2020/3/30 15:15:17

    Stainless steel is a common option of the food container, home appliances, sinks, and more products, but the stainless steel parts tend to become dull over time. How to restore the original luster of the stainless steel or make it look new again? Here we bring some simple methods of polishing stainless steel. If there are scratches on the object, you need to sand stainless steel firstly. The moder...

  • Overview of All Aluminum Grades and Alloys - Aluminum Classification and Types | Dajin Precision
    2020/3/27 17:44:59

    Before starting a project or manufacturing process, we should choose the best material to ensure success. If there are only subtle differences between two aluminum alloys, how to make the decision? Understand the classification, types, series, names, compositions, basic properties and characteristics of most aluminum grades and alloys, as well as temper designation, you are able to select amazing ...

  • What are the Differences Between Brass, Bronze and Copper | Dajin Precision
    2020/3/26 14:22:29

    Brass, bronze and copper are collectively referred to as red metals because of the distinctive reddish color, but the actual color of each metal is not the same. The composition is one of the most reliable methods to differentiate brass and bronze, while it’s not visually and not easy to tell. How to identify brass and bronze? What’s the difference between brass and copper? We need to compare them...

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