In forging production easy injury accident happened, according to its reason can be divided into three kinds:(1) mechanical damage.In the manufacturing process of forging, machinery and equipment, tools, or abnormal selection and use of workpiece, the illegal operation, etc., can lead to mechanical damage.Such as forging hammer hammer wounded;Fly forgings hurt;Auxiliary tool for flying wounded;Die, punch dozen fracture, damage to hurt;Raw material, forging, etc in the process of transportation cause of parts;Lever wounded, hammer rod fracture of the wounded, etc.(2) the fire explosion.Red blank, forging and splash scale once encounter flammable items, easy to cause fire and explosion accidents.(3) burning hot.Forging billet heating to 800 ~ 1 200 ℃, the operator once in contact with the red blank, forging and splash scale, etc., will surely get burnt.Heating furnace of occupational hazards and scorching artifacts radiation of heat energy, using a variety of fuel combustion flame furnac

Casting structure design should accord with the requirement of machine equipment itself and machining technology requirements, should also meet the requirements of the casting process, casting structure design should pay attention to the following:A, to facilitate manufacturing model, core box and style:1,the appearance of the casting should strive to simple, in order to draw, should try to make the casting parting surface is flat, and the smallest number;2,to the inner cavity of the casting, casting no or little use core, when using core, should be the support, the fixed and exhaust sanding, should have enough technology hole when necessary;3,inner and outer side for casting and strengthening rib structure, should be in the draw direction has a certain slope structure;4,convex parts and casting on the casting body should not differ too much, had better take the same height, the same distance on the surface of the close several convex sets, best into convex part of the whole.Second, to

Reviews the development of automotive history, it is not hard to see in which the role of advanced equipment and manufacturing process.Depends on the level and quality of automobile manufacture equipment level, at the same time, the car industry investment of more than half again to buy metalworking machine tools, imported machine tools accounted for about 80%, so the car industry's international competitiveness depends on the advanced equipment and production cost.In recent years, China's auto industry has become the subject of machine tool consumption accounted for about 70% of the machine tool consumption in our country.So the industry had auto equipment supporting the automotive industry and machine tool industry of half the sky.For this, proudly machine network think there are three possible: first, China's auto consumption accounts for about half of the equipment manufacturing industry output value and profit;Second, China's auto industry to become the first motive force in the d

What kind of subsequent processing parts processing using deformation and heat treatment process control, manufacturing process of other protective antioxidants in how to solve this problem?Magnesium alloys can be divided into casting magnesium alloy, magnesium alloy machining and heat treatment deformation of magnesium alloy face a big problem, including aluminum alloy also has a lot of deformation, in order to eliminate deformation of my several methods.After aging treatment is the deformation and stress to the school, the school in the form of heat on the way to the school, when another kind of method is formed on the surface of the school form, I suggest that can try to use the shot peening processing methods, including shot peening processing formed in the shape of airplane wings.Peen forming - the advantage is: first of all introduces the compressive stress, material properties, especially the fatigue performance is good;The second thin-walled parts, especially magnesium alloy af

The use of stainless steel is becoming more common, no matter in life or production, so to understand his need to be more thorough, to explore the stainless steel welding methods commonly used in this paper.First of all, the manual welding.Manual welding is a kind of special common, common, is also the welding method of operation is simple and easy to use.Arc length can rely on the operator manual for reasonable adjustment, the adjustment is according to the requirements of the electrode and the gaps between the welding of the workpiece, according to the size of the gap by adjusting the length of the arc.Welding stainless steel electrode not only can be used as a tool, at the same time, in certain cases it may serve as an effective weld filler material.And this kind of material, can better joint stainless steel workpiece, achieve better compatibility.Second, gas metal arc welding.Metal gas shielded arc welding is a kind of automatic gas shielded arc welding.In the process of using this

After forging, precision forging is refers to the parts only need a small amount of processing or processing is no longer meet the requirements of the parts dimension precision forming technology.Precision forging forming ways there are two main types: the elaboration blank, namely direct forging blank that could satisfy the requirement of precision machining.Precision forging, the whole parts or parts directly USES the precision forging process, thus reducing machine.Many currently used in production of precision forging process.According to the different forming temperature can be divided into hot forging, cold forging, warm forging, composite precision forging, etc.1, hot forging processHot forging is refers to the above the recrystallization temperature of precision forging technology of forging.Because of the high deformation temperature, in the forging deformation resistance of materials is low, good plasticity, so prone to forming complex geometry parts.2, cold precision forging

On the mechanical properties of the stainless steel precision casting is higher than cast iron, but its worse than cast iron casting performance, belong to the said revestment precision casting and precision casting.Its high melting point, easy oxidation of liquid steel, poor liquidity, contraction of molten steel, stainless steel precision casting is not only applicable to various types, all kinds of alloy casting.The processing technology of the stainless steel precision casting features:1, because of the stainless steel precision casting shrinkage considerably more than cast iron, to prevent casting shrinkage cavity, shrinkage defects, using riser and mostly on the casting process, cold iron and subsidies and other measures, in order to realize the solidification sequence.To prevent stainless steel castings, shrinkage cavity, shrinkage, porosity and crack defects, should make its uniform thickness, avoid sharp corners and rectangular structure, sawdust are added into the mould with

Engineer in us ford is developing a highly flexible and new manufacturing technology, the technology could reduce the small batch production of sheet metal parts manufacturing costs and reduce the delivery time.Traditionally, custom parts need six to eight weeks to production mold, but ford company has developed a unique, the manufacturing process of patents, in just a few hours to 3 d forming metal parts.Adopt the called "ford free forming manufacturing technology" (F3T) manufacturing process, a piece of metal plate can be fixed around its edges, work in coordination with the sheet metal blank on the side of the two type handwritten pen tool to form a 3 d shape.The new molding machine function is similar to digital printer, after a certain parts of the CAD data is received, controlled by the computer generation tool route F3T machine, forming sheet metal parts, eventually forming the required dimensional tolerance and surface finish of the metal parts.Traditionally, custom parts need

Stainless steel parts processing on the tool surface roughness of cutting part for higher cutting part of the surface finish can reduce friction, the chip formation curl tool durability.Compared with the processing of ordinary carbon steel, stainless steel processing cutting dosage should be reduced to slow the tool wear;While selecting the appropriate cooling lubricants, in order to reduce the cutting heat and cutting force in the cutting process, extend the service life of cutting tools.Stainless steel processing when the demand for cutting tool geometric parameters, the general should be after former Angle, Angle of options to consider.When choosing anterior horn, want to consider volume crumbs slot type, presence of chamfering and blade Angle of dip Angle of the positive and negative factors such as the size.No matter what kind of cutting tools, processing must be used when stainless steel larger rake Angle.Shoulds not be too small to the Angle of choice, but also shoulds not be to

Laser welding and SHS welding techniqueIs a non-contact welding, laser welding process without pressure, welding speed, high efficiency, deep, residual stress and deformation is small.1, is a non-contact welding, laser welding process without pressure, welding speed, high efficiency, deep, residual stress and deformation is small, can be at room temperature or under special conditions, such as a closed space for welding, welding equipment is simple, do not produce x-rays.2, can be welding refractory materials such as high melting point metal, and even can be used for non-metallic materials such as ceramic, organic glass welding, special-shaped material welding, good effect, and has a lot of flexibility, can for welding inaccessible parts of the non-contact remote welding.3, the laser beam is focused on the small light spot can be obtained, because is not affected by magnetic field and can accurate positioning, therefore, can be micro welding, suitable for mass production automation of