What are the advantages of Zhengzuan's products? For which processing scenarios and industries?

With the booming development of the automotive manufacturing industry, how to improve manufacturing efficiency and effectively reduce manufacturing costs while safeguarding the quality of automobiles has become a growing concern. Research shows that replacing traditional tools with more advanced cutting tools is seen as an effective way to achieve cost reduction and efficiency in automotive manufacturing.

In the process of automotive parts processing, the cost of hole machining and milling process occupies most of the entire parts processing costs. The high cost of hole machining is due to the difficulty of processing some holes, and the traditional hole machining cost control methods need to be improved. Traditional hole machining cost control is achieved by repeatedly resharpening tools. However, there are three major problems in grinding: firstly, it is difficult to position the tool tip during grinding, and the shape of the tool tip is easy to deviate; secondly, repeated grinding will lead to a smaller diameter of the drill bit; thirdly, regrinding will make the full length of the drill bit shorter each time.

In order to solve the hole processing problems and achieve cost reduction and efficiency increase, Zhengzuan has developed a series of special tools for difficult to machine holes. Take valve seat ring and duct hole processing as an example, the precision of valve seat ring and duct hole processing directly affects the engine power and exhaust emission index, Zhengzuan developed a series of special hole processing tools such as tappet hole processing tools, spark plug hole processing tools, injection nozzle hole finishing tools, which can easily realize the precision of valve seat ring and duct hole after pressing the ring and effectively avoid the problems of repeated tool adjustment, fast wear and deformation, and low processing efficiency. At the same time, it can guarantee the clearance between the valve and the seat ring to ensure the valve heat dissipation and sealing performance. The tappet hole roughing tool achieves the perfect heat shrink fit between carbide drill and PCD reamer; the 3μm runout of cutting edge ensures longer tool life and higher machining accuracy; the integrated structure design of drilling and reaming provides accurate guidance for reaming while drilling; the original blade change technology ensures the reaming accuracy is consistent with the new tool and reduces tool cost without reducing cutting quality. The shaft forward angle design of the tappet hole finishing tool reduces the axial force and makes cutting lighter and faster; the unequal tooth pitch structure can effectively avoid marks and make cutting smoother; the internal cooling design of the tool ensures smoother chip removal.

The diamond guide bar tool for crankshaft and camshaft bore machining adopts unique guide bar structure to ensure the accuracy and stability of large aspect ratio boring. 3μm runout of cutting edge ensures long tool life and high dimensional accuracy, and the adjustable flange connection structure is mainly used for high precision machining of crankshaft and camshaft bore.

The smooth and flat surface of cylinder head and cylinder block is very important for the normal operation of the engine. Automotive engine manufacturers are always striving for controlled and predictable surface accuracy levels and higher productivity, while maximizing tool life and minimizing tooling costs in the machining of each part. The aluminum-based face milling disc series for cylinder head joint surface milling, developed by Zhengzuan in conjunction with customer needs, adopts innovative tool design thinking to meet customer machining quality requirements while significantly improving machining efficiency and reducing tooling costs. Among them, the aluminum-based face milling discs MFAC30 and MFAC31 series are suitable for machining aluminum and aluminum alloy, copper and copper alloy and other non-ferrous metals, as well as wood and plastic, etc. They are suitable for rough and finish machining of high-efficiency face milling. The internal cooling design optimizes chip processing, which makes chip removal smoother and processing speed higher; machine clamped insert clamping, insert can be resharpened and replaced, and the tool disc can be reused, which greatly reduces the user's tool procurement cost; the circumferential runout can reach 0.001mm, which guarantees the accuracy of the machined parts; the 2mm tool adjustment range increases the number of times the insert can be resharpened; the position can be adjusted directly with a wrench, which is very convenient and quick.

Another high-speed CBN indexable finishing disc milling cutter for cylinder surface milling innovatively adopts integral CBN inserts, compared with traditional alloy inserts, both in terms of insert life and surface machining quality have greater advantages. The innovative design thinking makes it possible to process a certain angle in the cutter itself, and the insert can achieve cutting without the back angle, which makes the insert processing easier, the insert quality more secure, and the insert life exponentially extended. The blade adopts an indexable design structure to ensure that all 8 corners of the square blade can be used, making the blade life geometrically increased, while the blade can be resharpened repeatedly to extend the blade life and reduce processing costs. Due to the design of CBN inserts, the cutter can maintain a high feed and rotational speed while maintaining the quality of the machined surface, reducing the surface roughness value and increasing the life of the insert exponentially, while increasing the machining efficiency by more than double compared to alloy inserts. The innovative design concept enables the blade to be adjusted in both axial and radial directions, thus ensuring that the runout of the end teeth and the outer diameter of the blade can be adjusted to less than 0.005mm when the blade is mounted to the tooling, which effectively ensures that each blade is subject to the same wear and tear during machining and extends the life of the blade.

Over the past 20 years, Zhengzuan has always focused on the cutting tool industry, meeting changes with innovation, casting products with care and dedication to provide users with impeccable cutting tools, working together with users on the front line of production, solving cutting problems, reducing costs and increasing efficiency, becoming a trusted tool expert and tool manager around users.