A jade friend sent a picture of a newly bought white jade card to Teacher Zhang Yang, saying that it was a "master worker" who spent tens of thousands of dollars to buy, but Teacher Zhang Yang smiled at a glance, the exact same brand has been seen several times, this master is also too capable, each carving can be completely restored, it is a realm that only the "machine carving master" can achieve!
With the development of science and technology and the continuous rise of labor costs, traditional hand carving because of time-consuming and laborious, but also extremely test the level of jade carvers, the price remains high, thanks to the more advanced and refined machine carving, many merchants gradually or explicitly or implicitly choose to use machines to carve, in order to reduce costs.
In fact, Teacher Zhang Yang is not disgusted with machine carving, because machine carving makes carving pieces cheaper, customers can get certain benefits, and some well-designed machine carving works are better than many apprentice hand-carved works, but Zhang Yang teacher is very opposed to some merchants taking machine carved jade to impersonate handicrafts, and even charge high prices in the name of "master workers", in order to help everyone not be deceived, share the identification secrets of machine carving and handicraft.
First, the traces left by the engraving tools are different
Hand-carved jade, jade carvers often through a variety of tools for carving, leaving traces of depth, thickness, width and narrow changes, some will also have V-shape, U-shape, etc., because when carved by hand, jade is struck by different forces and directions to cause a slight crack, forming a rich variety of handmade thread grooves.
Machine carving is based on the computer planned lines, through the rotation of the mechanical wheel, carved on the jade pattern, carving tools perpendicular to the jade surface, so the edge of the line of the machine carving is flat and no curvature, leaving traces are basically the same, no diversity.
Second, the traces of polishing are not the same
Industry practice, hand carving is generally hand-polished, machine carving is generally machine grinding, hand-polished surface will generally have slight unevenness, because in the process of grinding, the strength of the human hand will have a difference in weight, but the strength of machine grinding is consistent, so the polishing surface is relatively smooth.
Third, the appearance of the work is different
The edge of hand carving, generally have a little inward concave into the arc, it can be seen that the carving master carving is up and down left and right have started, the lines are more flexible, but the machine carving is basically a plane, from the side there is no three-dimensional sense, the corners are relatively stiff.
After reading these identification cheats, have you gotten to the key points? Take a look at these pictures, guess which one is machine carving and which one is handmade?