JX-21JG440-505-SS, CNC stainless steel machined parts studs, medical equipment, wheelchair manufacturing, and medical cabinets. ultrasound machine manufacturing application solutions, surface treatment passivation

Stainless steel parts machining stainless steel material processing difficulties:

1. cutting force: high cutting temperature, material strength, cutting tangential stress, plastic deformation, and therefore cutting force. In addition, the material thermal conductivity is very poor, resulting in higher cutting temperatures, and high temperatures are often concentrated in the narrow area near the cutting edge of the tool, thereby accelerating the wear of the tool.

2. Serious work hardening: austenitic stainless steel and some high-temperature alloy stainless steel are an austenitic organization, cutting work hardening tendency, usually several times that of ordinary carbon steel, the tool cutting in the work hardening area, so that tool life is shortened.

3. Easy to stick to the knife: on austenitic stainless steel or martensitic stainless steel there are tough chips during processing, cutting temperature is very high. Tough chip flow through the front tool surface, will produce bonding, fusion welding, and other sticky phenomenon, affecting the surface roughness of the processed parts.

4. Tool wear accelerated: high melting point elements, plasticity, high cutting temperature, so that tool wears accelerated, sharpening, frequent tool changes, thereby affecting productivity, increasing the cost of tool use.

Stainless steel parts processing technology and related tool parameters design and ordinary structural steel materials should have a large difference, processing technology is as follows:

1. In the drilling process, due to the poor thermal conductivity of stainless steel materials, the modulus of elasticity is small, and hole processing is also more difficult. Select the appropriate tool material, and determine the reasonable geometric parameters of the tool and the cutting amount of the tool. When drilling the above materials, the drill should generally be used W6Mo5Cr4V2Al, W2Mo9Cr4Co8, and other materials, the disadvantage is that the price is more expensive and difficult to purchase. The common W18Cr4V ordinary standard high-speed steel drill bit drilling, due to the existence of the top angle is small, the chip is too wide and can not be discharged in time out of the hole, the cutting fluid can not cool the drill bit in time, coupled with the poor thermal conductivity of stainless steel materials, resulting in the cutting temperature concentrated on the cutting edge increases, easily lead to two rear face and the main edge burn and chipping, so that the service life of the drill bit reduced.

2. Tool geometric parameters design When drilling with W18Cr4V ordinary high-speed steel drill, the cutting force and cutting temperature are concentrated on the drill tip, to improve the durability of the cutting part of the drill, you can appropriately increase the angle, the top angle is generally selected 135 ~ 140 °, the top angle will also reduce the leading angle of the outer edge, the chip becomes narrower, to facilitate chip removal. However, after increasing the top angle, the cross-edge of the drill becomes wider, resulting in increased cutting resistance, so the cross-edge of the drill must be resharpened, resharpened cross-edge bevel angle of 47-55 degrees, cross-edge front angle of 3-5 degrees, resharpen the cross-edge, the cutting edge, and the cylindrical surface corner should be resharpened into a rounded angle, to increase the strength of the cross-edge. Due to the small modulus of elasticity of stainless steel material, the elastic recovery of the metal under the chip layer, coupled with the process of machining hardening is serious, the back angle is too small will accelerate the wear of the rear face of the drill, and increase the cutting temperature, reducing the life of the drill. Therefore, the back angle should be increased appropriately, but too large a back angle will make the main edge of the drill thin and reduce the rigidity of the main edge, so the back angle should be 12-15 degrees. To make the chips narrower for chip removal, it is also necessary to open staggered chip dividers on the two rear faces of the drill.

Packing: Inner is Poly foam, out is carton. Then pallet. Carton size: 29*19*19.5CM and 23.5*17.5*8, CM and pallet size is: 215*100*90CM, or as your requirement.

Packaging & Delivery and Packaging Details

1. Shrink film+wooden box

2. Cardboard box+pallet

3. Color box

4. As per the customer's request