Small Sewing Machine Silica Sol Precision Casting Spare Parts

 

The cold heading process is a crucial manufacturing technique for the automated mass manufacture of special-shaped components for domestic appliances, motorbikes, bicycles, and automobile fasteners. Metal fibres (metal flow lines) are continuous along the contour of the product without grain breaking, boosting product strength, especially with high mechanical qualities, and saving raw materials when compared to cutting processes. Fasteners are becoming increasingly environmentally conscious in response to the growing demand for environmental protection. Therefore, cold heading is pursuing high strength and high added value as a non-cutting shaping technology.

 

1. Punching holes with constrained stamping produces better results when the distance between the shape of the constrained stamping and the edge of the inner hole is less than the thickness of the plate, the inner diameter is greater than half the outer diameter, and the height is greater than 1.5 times the inner diameter. Due to the near proximity of the form to the inner hole's edge, the force of the punching needle will have an impact on the shape, changing its size. This aspect of the appearance must be kept in a restricted state to avoid alterations in overall size. The stamping component is under compressive stress as a result of the constraint force. In this state of punching compressive stress, taking appropriate gaps can achieve a stamping effect that is entirely bright.

 

2.Cold heading plastic processing is typically used to manufacture bolt heads through cutting and extrusion, and this method has more benefits than expansion forming. To produce a blank that satisfies the process requirements, the blank must be reshaped prior to cutting and extrusion forming. The blank's size must be considered carefully, and its shape prior to extrusion should be chosen based on the state of the parts, choosing a blank shape that promotes material flow.If the size of the blank is too large, that is, if the cutting and extrusion allowance is too large, the required cutting and extrusion force will be greater, which can easily reduce the service life of the cutting and extrusion mold, increase the possibility of accidental damage to the mold, and consume raw materials; If the cutting and extrusion allowance is too small, the parts may easily fall off corners after cutting and extrusion, resulting in incomplete shape and unsatisfactory appearance quality. The focus of the mold structure is on the design and processing of the cutting and extrusion film. It is best to control the working size of the blade at the middle and lower limits, and the angle of the cutting and extrusion mold should be appropriate. The blade must be ground and polished, with a roughness of Ra0.025 to Ra0.050μ m. Has the highest lifespan.

 

3.A fastener made of sheet metal that uses a composite forming technique of deep drawing and compression to combine cold extrusion-formed protruding thick-walled components with cup-shaped parts created by deep drawing and forging. Protruding heads and a rise in wall thickness are two of its forming properties.

 

4.There are two concepts of partial forming and upsetting forming. There are two types of upsetting: full upsetting and local upsetting. Full upsetting applies pressure to all of the product's end faces; local upsetting just provides pressure where it is required. Full forming necessitates a big tonnage stamping machine due to the size of the processing area and the high forming load. Lower loads can be employed for local forming to achieve the required plate thickness changes, which is frequently used in the creation of holes and grooves.① Taking joints as an example to illustrate the key points and applications of forming step parts, engineering design: machining according to the design drawing - annealing - phosphorus saponification - extrusion (forming steps through semi closed extrusion).

② Micro local shaping for some set screws requires processing 1-3 chip scraping grooves, which can be done using extrusion technology, for the purposes of locking and chip removal. The development of chip-scraping grooves for automobile combination bolts is a good example.

 

 

 

 

 

Basic Information

Total Capitalization	less than US$50,000
Country / Region	China
Year Established	2014
Total Employees	100 to 149
Business Type	Exporter, Manufacturer, Trading Company

 

Trading Capabilities

Total Annual Sales	less than US$50,000
Export Percentage	90 percent to 94 percent
OEM Services	Yes
Small Orders Accepted	Yes
Brand Names	Innolead
Payment Terms	TT
Main Competitive Advantages	Experienced R&D Department, Large Product Line, ODM (Original Designing & Manufacturing), OEM Capability, Production Capacity, Reliability, Reputation
Other Competitive Advantages	NA
Major Customer	Soprano, European Thermodynamics Ltd.
Export Markets	Australasia, Central/South America, Eastern Europe, Mid East/Africa, North America, Western Europe

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTACT US

Alex He

Tel:+86 15989331617

Whatsapp&Wechat:+86 15989331617

Skype ID:alex.ho43

Email: alex.he@innolead.net

 

Web:www.innolead.net

 

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