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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much bett...

What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th...

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form o...

ST STM32F103CBT6

ST STM32F103CBT6
#STM32F103CBT6 ST STM32F103CBT6 New Mainstream Performance line ARM Cortex-M3 MCU with 128 Kbytes Flash 72 MHz CPU motor control USB and CAN, STM32F103CBT6 pictures, STM32F103CBT6 price, #STM32F103CBT6 supplier
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Email: sales@shunlongwei.com

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Manufacturer Part Number: STM32F103CBT6
Brand Name: STMicroelectronics
Part Life Cycle Code: Active
Ihs Manufacturer: STMICROELECTRONICS
Part Package Code: QFP
Package Description: LFQFP, QFP48,.35SQ,20
Pin Count: 48
ECCN Code: 3A991.A.2
HTS Code: 8542.31.00.01
Manufacturer: STMicroelectronics
Risk Rank: 0.62
Has ADC: YES
Bit Size: 32
CPU Family: CORTEX-M3
Clock Frequency-Max: 16 MHz
DAC Channels: NO
DMA Channels: YES
JESD-30 Code: S-PQFP-G48
JESD-609 Code: e4
Length: 7 mm
Moisture Sensitivity Level: 2
Number of I/O Lines: 37
Number of Terminals: 48
On Chip Program ROM Width: 8
Operating Temperature-Max: 105 °C
Operating Temperature-Min: -40 °C
PWM Channels: YES
Package Body Material: PLASTIC/EPOXY
Package Code: LFQFP
Package Equivalence Code: QFP48,.35SQ,20
Package Shape: SQUARE
Package Style: FLATPACK, LOW PROFILE, FINE PITCH
Peak Reflow Temperature (Cel): 260
Power Supplies: 2.5/3.3 V
Qualification Status: Not Qualified
RAM (bytes): 20480
ROM (words): 131072
ROM Programmability: FLASH
Seated Height-Max: 1.6 mm
Speed: 72 MHz
Subcategory: Microcontrollers
Supply Current-Max: 50 mA
Supply Voltage-Max: 3.6 V
Supply Voltage-Min: 2 V
Supply Voltage-Nom: 3.3 V
Surface Mount: YES
Technology: CMOS
Temperature Grade: INDUSTRIAL
Terminal Finish: Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form: GULL WING
Terminal Pitch: 0.5 mm
Terminal Position: QUAD

Mainstream Performance line ARM Cortex-M3 MCU with 128 Kbytes Flash 72 MHz CPU motor control USB and CAN

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