How to process nuts

Ordinary hexagon nut? There are three production processes? Cold heading and hot heading? Under special circumstances? Organic processing is also the slowest? You must make a choice. Why don't we start with cold heading? Specifications are generally in M3~M30? Route selection first? After pickling and cold drawing? Connect one end of the wire to the feeding position of the cold heading machine? According to the die in the cold heading machine, the hexagonal blank with corresponding size is punched. There is a hole in the middle? The form is the same as the general hexagon nut, except that there is no tapping? Old-fashioned cold heading machine can't be formed at one time? Do you have hexagonal blanks? Then you have to pour it into the funnel of the tapping machine for tapping? If there is a requirement? Do you need heat treatment and surface treatment? Is it to adjust the hardness of the nut and the antirust treatment of the surface? Is the current cold heading machine formed at one time? But there is no big difference in principle. Is it faster to combine the tapping machine and the cold heading machine into one? Cold heading has the highest efficiency? This is also the lowest cost production process. Generally, large specifications will choose hot upsetting? Specifications generally range from m16 to m160? Even bigger? Is the material generally round steel? No cold drawing and pickling? Upsetting before cutting with a punch? Is the blank the same as cold heading? Is the surface rough? And attack your teeth? Are there any specific requirements? You can chamfer both sides of the nut. Is it a finished product after heat treatment and surface treatment? Machining is to cut the rod-shaped material into sections with a sawing machine? Drilling by drilling machine, tapping is basically completed? The back is packaging. Cold heading and hot heading are generally divided into the following steps. Drawing-cold heading-? Heat treatment? Knocking sound. -Surface treatment? Blanking-red punching-chamfering-hole turning-heat treatment? -Tapping-surface treatment or blanking-ball upsetting-annealing, phosphating-forming-punching-? Heat treatment? -Tapping surface treatment. Tapping process: the process of tapping hexagonal nuts. Is this related to the batch? 1, what if it is a small batch? Less than 100? Is the process ok at this time? A machined nut blank? B chamfering on ordinary drilling machine? Tapping wire on common tapping machine. 2. Medium batch? Less than 65438+ ten thousand? An automatic lathe processes nut blanks? B lathe chamfering? C tapping is completed on drilling tapping machine, D inspection, E packaging and F warehousing? 3. large quantities? More than 65438+ million? Perennial production? Cold upsetting machine for nut blank? B. tapping on a special tapping machine for hexagon nuts? C exam? Packaging and storage. Machining center taps, but what is the main reason for edge collapse? 45 steel, 1 tap tooth collapse? Too large tap rake angle selection? 2 The cutting thickness of each tap tooth is too large? Is the quenching hardness of tap too high? The faucet has been used for a long time and is seriously worn. 4 faucet quality problems