Ningbo Hewcho

Now the industry of machined parts processing has developed quickly. Generally speaking, the methods of  machined parts  processing are more than one. Do you know how many kinds of machining are there? Today let  HEWCHO   share with you! 1. Mechanical parts are formed in many forms: (1): Thermal processing: casting, forging, welding, etc. (2): Cold processing: lathing, planing, milling, punching, pressing, riveting, etc. 2. Cold processing also has many forms:  (1): Sheet metal parts: punching, pressing, riveting, etc. (2): Integrated parts: lathing, planing and milling, etc. 3. The general machining is the processing of the integrated parts. The forms are as follows: (1): Workpiece rotary machining: lathing. (2): Tool rotary machining: drilling, milling, boring, plane grinding. (3): Rotary machining of both workpiece and tool: inner round grinding, round grinding, rolling cutting. (4): Rotary machining of neither workpiece nor tool: planing, inserting and pull...

Today we share with you the processing stages of precision mechanical components: When processing precision components, it is impossible to complete all the surface processing contents in one process. The entire process of precision machining can be divided into the following stages: 1. The stage of rough machining: Remove most of the finish allowance of each processing surface, process the fine datumthe, and increase productivity as much as possible. ​ 2. The stage of semi-finishing machining: Eliminate the defects produced after the rough machining, and prepare for surface finishing. It is required to achieve certain machining accuracy, ensure proper finishing allowance, and complete secondary surface processing. 3. The stage of  custom precision machining : At this stage, the large cutting speed, small load and cutting depth are used to cut off the finishing allowance left by the previous process, so that the surface of the part can meet the technical requirements of the sample ...

The screw thread is often shortened to the thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. A screw thread is the essential feature of the screw as a simple machine and also as a fastener. According to its position in the body is divided into external thread(male), internal thread(female), according to its cross-sectional shape (dental) is divided into triangular thread, rectangular thread, trapezoidal thread, zigzag thread and other special shape thread. Thread Handedness The helix of a thread can twist in two possibledirections. Most thread s are oriented so that the threaded item when seen from a point of view on the axis through the center of the helix, moves away from the viewer when it is turned in a clockwise direction, and moves towards the viewer when it i...

Forging is the use of an impact or pressure to deform the metal in the iron or forging die to obtain the desired shape and size of forgings. This type of process is called forging. Forging is one of the important forming methods for metal parts. It can ensure that metal parts have good mechanical properties to meet the requirements of use. It can be called hot or cold forging by whether the metal temperature is above or below the recrystallization temperature. Hot Forging Process Hot forging process is a metalworking process in which metals are plastically deformed above their recrystallization temperature, which allows the material to retain its deformed shape as it cools. It is performed at the highest temperature which does not destroy the metallurgical features of the considered alloy (up to 1250°C for steel, 300 to 460°C  for Al-Alloys, 750 to 1040°C for titanium alloys and 700 to 800 °C for Cu-Alloys). Hot Forging Advantages(VS cold forging) ●Elimination of chemical impuritie...

Threading is the process of creating a screw thread. There are many method f generating threads, including thread turning and milling, tapping, thread rolling and forming. Thread turning Thread turning, as compared to thread forming and rolling, is used when full thread depth is required, when the quantity is small, when the blank is not very accurate, when threading up to a shoulder is required, when threading a tapered thread, or when the material is brittle. Thread Taping Tapping is an easy, well known and highly efficient threading process. This method offers productive and economical threading, especially for smaller threads, through reduced machine downtime, higher cutting speeds, and long tool life. Forming taps and cutting taps come in different designs. The material, coating, and geometry of the tap are very important features to be considered for each tap style. A tap design for a specific area that works well for one material/application may not be working effectively for an...