What to do when drill bit/taps break in workpiece ?
Views : 486
Update time : 2017-04-17 09:54:24
Precessing with drill bit,end mills and taps,some times we will met the problem with tools break in workpiece,then what we can do ?
1, irrigation lubricants, with a sharp hairpin or cut in the fracture surface slowly knocked out, down iron cut (the most commonly used method, but for the aperture is too small screw hole or broken too long may Not suitable, but can try);
2, in the tap broken section welded a handle or hex nut, and then gently turned out (originally a good way, but the welding some trouble, or the same, for the smaller diameter tap is not appropriate);
3, with a special tool: broken wire picker, the principle is the workpiece and the taps were connected to the positive and negative electrodes, the middle of the irrigation electrolyte, resulting in the workpiece to the taps discharge corrosion, and then assist the needle nose pliers removed,
4, take the steel roll in the tap in the tap with a small hammer slowly knock, tap more brittle, and finally knock into the slag out, or more simple, directly to the screw thread hole drilled rotten boring rotten, re-reaming tapping (method Some brutal, if the tap diameter is too small to make, too much diameter, knock up also very tiring);
5, will be broken wire where the screw hole welding flat, and then polished, re-drilling, although it is difficult but can slowly drill into (if the screw hole can change the position, then re-drilling tapping, it is recommended to change To the original screw hole next to);
6, in the broken cone section chisel a word slot, with a screwdriver twist (that slot is difficult to chisel out, if the tap is small, then the more difficult);
7, to break the tapping hole of the screw hole, and then mosaic a wire screw sets or pins or something, and then welding, grinding, re-drilling tapping, can be basically the same (this method is troublesome, but very practical , Tap size does not matter);
8, with electric pulse destroyed, EDM or wire cutting can be, the hole can be reamer hole plus wire screw sets (this method is more simple and convenient, as for the coaxial degree temporarily do not consider, unless you that the same hole Shaft degrees directly affect the quality of the machine);
9, do a simple tool at the same time into the broken cone section of the chip flute vacancy, carefully pulled out, for example, can be used with a square dowel on the taps on the two screws, with the wire (the number of the same number of taps ) Insert the broken taps and nuts in the empty slots, and then use the hinge bar to exit the direction of the side of the dowel, the broken wire removed (the method of this method is the idea of Tongluo broken taps chip, the use of steel wire, preferably The needle is a special tool to take the wire.Of course, if the workshop is often the case of broken wire, or do such a tool lever better);
10, nitric acid solution can corrode high-speed steel taps, and do not report waste parts
11, with acetylene flame or torch to taper annealing, and then drill with a drill, then the diameter of the drill should be smaller than the diameter of the bottom hole, drilling should also be aligned center, to prevent the thread drilled, hole drilling into a flat Or square punch and then lever out the tap
12, with gas drill to take, thanks to feel, because it is not directly drilled tap, but with a little slow and a little bit of friction (similar to the car half-clutch) to pull out the tap.
13, you can use the grinding machine to wear the broken parts of the wire, and then drill with a small drill, and then gradually switch to a larger drill, broken wire gradually fall off, after falling off with the original size of the tap to re-attack the teeth, Advantages can not increase the aperture.
14, in the cut on the welding of an iron bar, and then screw out. (Shortcomings: a, too small broken objects can not be welded; b, the welding technology requires a very high, easy to burn the workpiece; c, welding is easy to break, can take out the risk of small objects.
15, with a broken tool than the hard to tap the pry. B, broken objects too deep, too small can not be removed; c, easy to destroy the original hole.), But also easy to damage the original hole.
16, do a smaller than the diameter of the hexagonal electrode, with EDM machine in the cut on the processing of a hexagonal counterbore, and then use the hex lever twist out. (Disadvantages: a, dead on the rust or stuck in the useless; b, for large parts useless; c, too small for the useless; d, time-consuming, trouble.)
17, directly with a smaller than the electrode into the break, with EDM machine to play. (Disadvantages: a, for large workpieces useless, can not be put into the EDM machine table; b, time-consuming; c, too deep when easy to carbon, can not play.
18, with the metal drill bit to play (shortcomings: a, easy to damage the original hole; b, on the hard cut into the useless; c, alloy bit more fragile broken.
19, now there is a principle of electrical design and manufacture of portable machine tools, can quickly and easily off the screw, broken cone drill removed.
20, if the screw is not too hard, you can set the end of frustration, and then find out the center point, with the kind of punch a small point up, with a little bit drill first drill, to vertical, and then use wire cutter Out of it.
21, if you can not buy broken wire extractor, with a little bit of drill to continue reaming, in the aperture close to the screw, some silk will eat can not eat down, remove the remaining silk teeth, and then re-trim with a taps on the line.
22, if the thread broken wire is exposed, or broken screw requirements are not strict, there can be saw with a saw, you can saw the seam, even the shell is saw, and then use a flat screwdriver to unload.
23, if the broken wire exposed to a certain length in the outside, and the mechanical material melting point is not too low, available welding on the screw welding a lengthened T-bar, so that the rod can be easily screwed from the welding.
24, if the screw rust is very serious, with the above method is not handled properly, it is recommended to add a little roasted roasted oil, and then the corresponding way to deal with the above.
25, after more efforts N, the screw is taken out, but when the hole is also waste, simply drilling a greater hole tapping, if the original screw position and size are limited, you can also play a larger Screw into, or direct welding tapping, and then drill a small screw in the center of the hole tapping. But after welding the internal metal structure problems sometimes tapping will be more difficult.
1, irrigation lubricants, with a sharp hairpin or cut in the fracture surface slowly knocked out, down iron cut (the most commonly used method, but for the aperture is too small screw hole or broken too long may Not suitable, but can try);
2, in the tap broken section welded a handle or hex nut, and then gently turned out (originally a good way, but the welding some trouble, or the same, for the smaller diameter tap is not appropriate);
3, with a special tool: broken wire picker, the principle is the workpiece and the taps were connected to the positive and negative electrodes, the middle of the irrigation electrolyte, resulting in the workpiece to the taps discharge corrosion, and then assist the needle nose pliers removed,
4, take the steel roll in the tap in the tap with a small hammer slowly knock, tap more brittle, and finally knock into the slag out, or more simple, directly to the screw thread hole drilled rotten boring rotten, re-reaming tapping (method Some brutal, if the tap diameter is too small to make, too much diameter, knock up also very tiring);
5, will be broken wire where the screw hole welding flat, and then polished, re-drilling, although it is difficult but can slowly drill into (if the screw hole can change the position, then re-drilling tapping, it is recommended to change To the original screw hole next to);
6, in the broken cone section chisel a word slot, with a screwdriver twist (that slot is difficult to chisel out, if the tap is small, then the more difficult);
7, to break the tapping hole of the screw hole, and then mosaic a wire screw sets or pins or something, and then welding, grinding, re-drilling tapping, can be basically the same (this method is troublesome, but very practical , Tap size does not matter);
8, with electric pulse destroyed, EDM or wire cutting can be, the hole can be reamer hole plus wire screw sets (this method is more simple and convenient, as for the coaxial degree temporarily do not consider, unless you that the same hole Shaft degrees directly affect the quality of the machine);
9, do a simple tool at the same time into the broken cone section of the chip flute vacancy, carefully pulled out, for example, can be used with a square dowel on the taps on the two screws, with the wire (the number of the same number of taps ) Insert the broken taps and nuts in the empty slots, and then use the hinge bar to exit the direction of the side of the dowel, the broken wire removed (the method of this method is the idea of Tongluo broken taps chip, the use of steel wire, preferably The needle is a special tool to take the wire.Of course, if the workshop is often the case of broken wire, or do such a tool lever better);
10, nitric acid solution can corrode high-speed steel taps, and do not report waste parts
11, with acetylene flame or torch to taper annealing, and then drill with a drill, then the diameter of the drill should be smaller than the diameter of the bottom hole, drilling should also be aligned center, to prevent the thread drilled, hole drilling into a flat Or square punch and then lever out the tap
12, with gas drill to take, thanks to feel, because it is not directly drilled tap, but with a little slow and a little bit of friction (similar to the car half-clutch) to pull out the tap.
13, you can use the grinding machine to wear the broken parts of the wire, and then drill with a small drill, and then gradually switch to a larger drill, broken wire gradually fall off, after falling off with the original size of the tap to re-attack the teeth, Advantages can not increase the aperture.
14, in the cut on the welding of an iron bar, and then screw out. (Shortcomings: a, too small broken objects can not be welded; b, the welding technology requires a very high, easy to burn the workpiece; c, welding is easy to break, can take out the risk of small objects.
15, with a broken tool than the hard to tap the pry. B, broken objects too deep, too small can not be removed; c, easy to destroy the original hole.), But also easy to damage the original hole.
16, do a smaller than the diameter of the hexagonal electrode, with EDM machine in the cut on the processing of a hexagonal counterbore, and then use the hex lever twist out. (Disadvantages: a, dead on the rust or stuck in the useless; b, for large parts useless; c, too small for the useless; d, time-consuming, trouble.)
17, directly with a smaller than the electrode into the break, with EDM machine to play. (Disadvantages: a, for large workpieces useless, can not be put into the EDM machine table; b, time-consuming; c, too deep when easy to carbon, can not play.
18, with the metal drill bit to play (shortcomings: a, easy to damage the original hole; b, on the hard cut into the useless; c, alloy bit more fragile broken.
19, now there is a principle of electrical design and manufacture of portable machine tools, can quickly and easily off the screw, broken cone drill removed.
20, if the screw is not too hard, you can set the end of frustration, and then find out the center point, with the kind of punch a small point up, with a little bit drill first drill, to vertical, and then use wire cutter Out of it.
21, if you can not buy broken wire extractor, with a little bit of drill to continue reaming, in the aperture close to the screw, some silk will eat can not eat down, remove the remaining silk teeth, and then re-trim with a taps on the line.
22, if the thread broken wire is exposed, or broken screw requirements are not strict, there can be saw with a saw, you can saw the seam, even the shell is saw, and then use a flat screwdriver to unload.
23, if the broken wire exposed to a certain length in the outside, and the mechanical material melting point is not too low, available welding on the screw welding a lengthened T-bar, so that the rod can be easily screwed from the welding.
24, if the screw rust is very serious, with the above method is not handled properly, it is recommended to add a little roasted roasted oil, and then the corresponding way to deal with the above.
25, after more efforts N, the screw is taken out, but when the hole is also waste, simply drilling a greater hole tapping, if the original screw position and size are limited, you can also play a larger Screw into, or direct welding tapping, and then drill a small screw in the center of the hole tapping. But after welding the internal metal structure problems sometimes tapping will be more difficult.