Industry Applications

Machining of the upper thrust rod frame mounting hole

Comparative Trial Cutting Report for the Upper Thrust Rod Frame Mount ZG310-570 (HB180-230)

Case study of comparative trial cutting of a pushrod frame mount for a customer in Shandong:

Room 105, Building 8, Zone 8, Lingxin Market, Jiangning District, Nanjing City

Website Development: China Enterprise Dynamics, Nanjing

	Nanjing Jianchuanshi Industrial and Trading Co., Ltd.
Comparison Trial Cutting Report
Test Objective: √ Abrasion Resistance □ Chipping Resistance □ Surface Quality of Machined Surface
	Test	Currently in use
Drill bit specifications and models	GDMK250R5W32M/GDMK2500XE P25	KSEM250R5WN32M/KSEM2500HPGM KC7315
Brand	YESTOOL	Kenna
Product Material	ZG310-570	ZG310-570
Material hardness	HB180-230	HB180-230
Product Name	Upper Pushrod Frame Mount	Upper Pushrod Frame Mount
Processing method	Drilling	Drilling
Cutting method	Internal cooling, emulsion	Internal cooling, emulsion
Test equipment	Qinghai No.1 Machine XHY766	Jugu HM63H
Spindle speed n r/min	900	600
Hole depth mm	125 (through-hole) * 6 (spot drilling)	125 (through-hole) * 6 (spot drilling)
Feed f mm/r	150	50-60
Number of processed product parts	60	35
Lifespan	41.5M	24.15M
Workpiece physical object

Tool Wear Condition
Overview of Wear Condition	The drill tip exhibits minor chipping, the transverse land shows normal wear, and the outer flank is worn and fused.	The center drill tip is normal, but there are numerous small chipping defects on the transverse land and on the outer flank.
Processing Evaluation	Customers are generally satisfied with the machine’s service life and efficiency; however, the machine tool load is approximately 45% higher than specified, which has been acknowledged by the customer.	Efficient and cost-effective, but with a relatively short service life; machine tool load is kept below 30%.
Iron filings state