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Quick Start on CNC Machining Center Programming
Concept 1: Instruction grouping: Group instructions with similar functions into one group. G codes of the same group cannot appear in the same line of program segment at the same time. Concept 2: Program segment The program segment is the basic component of the program. The program segment is com...Read more -
Complete technical requirements for heat treatment, tolerance, etc.
General technical requirements 1. Remove the oxide scale from the parts. 2. There should be no scratches, abrasions or other defects that damage the surface of the parts on the processed surface. 3. Remove burrs and flash. Heat treatment requirements 1. After quenching and tempering, HRC50~55. 2....Read more -
Super practical! Various steel weight calculation formulas, save them!
Formula for calculating the weight of rebar: diameter mm × diameter mm × 0.00617 × length m Example: Calculation of rebar Φ20mm (diameter) × 12m (length): 20 × 20 × 0.00617 × 12 = 29.616kg Steel pipe weight calculation formula: (outer diameter – wall thickness) × wall thickness mm × 0.0246...Read more -
13 key points to prevent welding deformation, simple and practical
Since welding deformation is mostly caused by the asymmetric heat generated by welding, resulting in different expansions, several methods to prevent welding deformation are summarized as follows for reference: 1. Reduce the cross-sectional area of the weld. On the premise of obtaining a compl...Read more -
What is the strip defect? Why can’t it be polished away and why can’t it be seen?
We often see strip defects in rework orders. Many welders say, “I know about pores, slag inclusions, and incomplete penetration. What is this strip defect? I can’t see it during grinding. What is this defect?” Today, let’s explain the definition of strip defects. The def...Read more -
Measures to improve fatigue strength of welded structures
Measures to improve fatigue strength of welded structures 1) Reduce stress concentration fatigue crack sources in welded joints and stress concentration points on structures. All means to eliminate or reduce stress concentration can improve the fatigue strength of structures. (1) Adopt reasonable...Read more -
You must master these knowledge to do CNC
At present, the economic CNC lathes in my country generally use ordinary three-phase asynchronous motors to achieve stepless speed change through frequency converters. If there is no mechanical deceleration, the spindle output torque is often insufficient at low speed. If the cutting load is too ...Read more -
What are the basic principles of mechanical drawings?
There are many basic rules in mechanical drawing, and ASME Y14.5-2009 stipulates 16 basic rules, which everyone must know when drawing, reading or reviewing drawings. The following will introduce these 16 basic rules one by one. Article 1: Except for reference dimensions, maximum and minimum dim...Read more -
The origin of CNC tools, it is hard to imagine the greatness of mankind!
The development of cutting tools plays an important role in the history of human progress. As early as the 28th to 20th century BC, brass cones, copper cones, drills, knives and other copper cutting tools appeared in China. In the late Warring States period (3rd century BC), copper cutting tools ...Read more -
Aluminum alloy laser welding technology
With the development of laser technology and aluminum alloy research and development technology, it is particularly important to further carry out basic research on aluminum alloy laser welding application technology, develop new aluminum alloy laser welding processes, and more effectively expand...Read more -
How to effectively prevent porosity in argon arc welding?
Causes of pores (1) The base material is unclean; the groove edge is not cleaned properly; (2) There are large differences in the composition and properties of the welding material and the base material; (3) Problems with welding shielding gas; a) The argon pressure in the gas cylinder is insuffi...Read more -
Tube-to-tube GTAW welding parameters
Tungsten Inert Gas Welding, abbreviated as TIG. Later, the American Welding Society officially named it Gas Tungsten Arc Welding, and the abbreviation was changed to GTAW. Here we talk about the welding parameters of GTAW for pipe-to-pipe butt welding. When the pipe-to-pipe butt fittings are hor...Read more
